13121022120311 has 12 divisors (see below), whose sum is σ = 15521928627240. Its totient is φ = 11055970210320.

The previous prime is 13121022120301. The next prime is 13121022120337. The reversal of 13121022120311 is 11302122012131.

It is not a de Polignac number, because 13121022120311 - 2³⁰ = 13119948378487 is a prime.

It is a super-2 number, since 2×13121022120311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121022120301) 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, 2269284920 + ... + 2269290701.

It is an arithmetic number, because the mean of its divisors is an integer number (1293494052270).

Almost surely, 2^{13121022120311} is an apocalyptic number.

13121022120311 is a deficient number, since it is larger than the sum of its proper divisors (2400906506929).

13121022120311 is an equidigital number, since it uses as much as digits as its factorization.

13121022120311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4538575694 (or 4538575687 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13121022120311 its reverse (11302122012131), we get a palindrome (24423144132442).

The spelling of 13121022120311 in words is "thirteen trillion, one hundred twenty-one billion, twenty-two million, one hundred twenty thousand, three hundred eleven".