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13121013311301 = 371573979682533
BaseRepresentation
bin1011111011101111100101…
…0101100110011101000101
31201110100121222101200120010
42332323321111212131011
53204433313401430201
643523413231500433
72522650640645220
oct276737125463505
951410558350503
1013121013311301
1141a9654a4a675
12157ab34987719
137423c9a9076c
143350bbb825b7
1517b49359cbd6
hexbeef9566745

13121013311301 has 16 divisors (see below), whose sum is σ = 20121274891904. Its totient is φ = 7449965699904.

The previous prime is 13121013311249. The next prime is 13121013311359. The reversal of 13121013311301 is 10311331012131.

It is not a de Polignac number, because 13121013311301 - 29 = 13121013310789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121013311501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1989837970 + ... + 1989844563.

It is an arithmetic number, because the mean of its divisors is an integer number (1257579680744).

Almost surely, 213121013311301 is an apocalyptic number.

It is an amenable number.

13121013311301 is a deficient number, since it is larger than the sum of its proper divisors (7000261580603).

13121013311301 is a wasteful number, since it uses less digits than its factorization.

13121013311301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979682700.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 13121013311301 its reverse (10311331012131), we get a palindrome (23432344323432).

The spelling of 13121013311301 in words is "thirteen trillion, one hundred twenty-one billion, thirteen million, three hundred eleven thousand, three hundred one".

Divisors: 1 3 7 21 157 471 1099 3297 3979682533 11939047599 27857777731 83573333193 624810157681 1874430473043 4373671103767 13121013311301