13121023310231 has 8 divisors (see below), whose sum is σ = 13125087602880. Its totient is φ = 13116959580672.

The previous prime is 13121023310209. The next prime is 13121023310333. The reversal of 13121023310231 is 13201332012131.

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 13121023310231 - 2¹⁸ = 13121023048087 is a prime.

It is a super-2 number, since 2×13121023310231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121023310197 and 13121023310206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121023310531) 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, 49105250 + ... + 49371728.

It is an arithmetic number, because the mean of its divisors is an integer number (1640635950360).

Almost surely, 2^{13121023310231} is an apocalyptic number.

13121023310231 is a deficient number, since it is larger than the sum of its proper divisors (4064292649).

13121023310231 is a wasteful number, since it uses less digits than its factorization.

13121023310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281545.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13121023310231 its reverse (13201332012131), we get a palindrome (26322355322362).

The spelling of 13121023310231 in words is "thirteen trillion, one hundred twenty-one billion, twenty-three million, three hundred ten thousand, two hundred thirty-one".