121013202131 has 16 divisors (see below), whose sum is σ = 125557063200. Its totient is φ = 116494560000.

The previous prime is 121013202083. The next prime is 121013202161. The reversal of 121013202131 is 131202310121.

It is a cyclic number.

It is not a de Polignac number, because 121013202131 - 2¹⁰ = 121013201107 is a prime.

It is a super-2 number, since 2×121013202131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121013202161) 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, 17281631 + ... + 17288631.

It is an arithmetic number, because the mean of its divisors is an integer number (7847316450).

Almost surely, 2^121013202131 is an apocalyptic number.

121013202131 is a deficient number, since it is larger than the sum of its proper divisors (4543861069).

121013202131 is a wasteful number, since it uses less digits than its factorization.

121013202131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8710.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121013202131 its reverse (131202310121), we get a palindrome (252215512252).

The spelling of 121013202131 in words is "one hundred twenty-one billion, thirteen million, two hundred two thousand, one hundred thirty-one".