121321003131 has 12 divisors (see below), whose sum is σ = 175248245952. Its totient is φ = 80877531696.

The previous prime is 121321003123. The next prime is 121321003159. The reversal of 121321003131 is 131300123121.

It is not a de Polignac number, because 121321003131 - 2³ = 121321003123 is a prime.

It is a super-2 number, since 2×121321003131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121321003121) 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, 3051 + ... + 492596.

It is an arithmetic number, because the mean of its divisors is an integer number (14604020496).

Almost surely, 2^121321003131 is an apocalyptic number.

121321003131 is a deficient number, since it is larger than the sum of its proper divisors (53927242821).

121321003131 is a wasteful number, since it uses less digits than its factorization.

121321003131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522850 (or 522847 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 121321003131 its reverse (131300123121), we get a palindrome (252621126252).

The spelling of 121321003131 in words is "one hundred twenty-one billion, three hundred twenty-one million, three thousand, one hundred thirty-one".