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13121302312211 = 173408492264467
BaseRepresentation
bin1011111011110000101010…
…0100000011010100010011
31201110101101010012110021112
42332330022210003110103
53204434411342442321
643523502034043535
72522661050264402
oct276741244032423
951411333173245
1013121302312211
1141a97930a12a5
12157abb57195ab
1374244490a012
143351082d1639
1517b4adb37a5b
hexbef0a903513

13121302312211 has 8 divisors (see below), whose sum is σ = 13893190520400. Its totient is φ = 12349419314688.

The previous prime is 13121302312193. The next prime is 13121302312219. The reversal of 13121302312211 is 11221320312131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13121302312211 - 26 = 13121302312147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13121302312219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4662200 + ... + 6926666.

It is an arithmetic number, because the mean of its divisors is an integer number (1736648815050).

Almost surely, 213121302312211 is an apocalyptic number.

13121302312211 is a deficient number, since it is larger than the sum of its proper divisors (771888208189).

13121302312211 is a wasteful number, since it uses less digits than its factorization.

13121302312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605333.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13121302312211 its reverse (11221320312131), we get a palindrome (24342622624342).

The spelling of 13121302312211 in words is "thirteen trillion, one hundred twenty-one billion, three hundred two million, three hundred twelve thousand, two hundred eleven".

Divisors: 1 17 340849 2264467 5794433 38495939 771841312483 13121302312211