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121021021001300 = 22527172887172859
BaseRepresentation
bin11011100001000101100110…
…111101111001011001010100
3120212111111102000220222011012
4123201011212331321121110
5111330302022334020200
61105220142312231352
734330323501410240
oct3341054675713124
9525444360828135
10121021021001300
11356197aa386552
12116a682709b558
13526b305781404
1421c563d215420
15ded07b5b6a35
hex6e1166f79654

121021021001300 has 36 divisors (see below), whose sum is σ = 300132132084960. Its totient is φ = 41492921485920.

The previous prime is 121021021001297. The next prime is 121021021001303. The reversal of 121021021001300 is 3100120120121.

It is an interprime number because it is at equal distance from previous prime (121021021001297) and next prime (121021021001303).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021021001303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86443585730 + ... + 86443587129.

Almost surely, 2121021021001300 is an apocalyptic number.

121021021001300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121021021001300 is an abundant number, since it is smaller than the sum of its proper divisors (179111111083660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121021021001300 is a wasteful number, since it uses less digits than its factorization.

121021021001300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172887172880 (or 172887172873 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121021021001300 its reverse (3100120120121), we get a palindrome (124121141121421).

The spelling of 121021021001300 in words is "one hundred twenty-one trillion, twenty-one billion, twenty-one million, one thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 172887172859 345774345718 691548691436 864435864295 1210210210013 1728871728590 2420420420026 3457743457180 4322179321475 4840840840052 6051051050065 8644358642950 12102102100130 17288717285900 24204204200260 30255255250325 60510510500650 121021021001300