32121232131 has 16 divisors (see below), whose sum is σ = 45815130144. Its totient is φ = 19946717184.

The previous prime is 32121232103. The next prime is 32121232141. The reversal of 32121232131 is 13123212123.

It is not a de Polignac number, because 32121232131 - 2²³ = 32112843523 is a prime.

It is a super-2 number, since 2×32121232131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32121232098 and 32121232107.

It is not an unprimeable number, because it can be changed into a prime (32121232141) 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, 3241590 + ... + 3251483.

It is an arithmetic number, because the mean of its divisors is an integer number (2863445634).

Almost surely, 2^32121232131 is an apocalyptic number.

32121232131 is a deficient number, since it is larger than the sum of its proper divisors (13693898013).

32121232131 is a wasteful number, since it uses less digits than its factorization.

32121232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6493190.

The product of its digits is 432, while the sum is 21.

Adding to 32121232131 its reverse (13123212123), we get a palindrome (45244444254).

The spelling of 32121232131 in words is "thirty-two billion, one hundred twenty-one million, two hundred thirty-two thousand, one hundred thirty-one".