31330232141 has 12 divisors (see below), whose sum is σ = 33931417140. Its totient is φ = 28915286400.

The previous prime is 31330232113. The next prime is 31330232149. The reversal of 31330232141 is 14123203313.

It can be written as a sum of positive squares in 6 ways, for example, as 1417146025 + 29913086116 = 37645^2 + 172954^2 .

It is not a de Polignac number, because 31330232141 - 2²² = 31326037837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330232149) 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, 1304441 + ... + 1328241.

It is an arithmetic number, because the mean of its divisors is an integer number (2827618095).

Almost surely, 2^31330232141 is an apocalyptic number.

It is an amenable number.

31330232141 is a deficient number, since it is larger than the sum of its proper divisors (2601184999).

31330232141 is a wasteful number, since it uses less digits than its factorization.

31330232141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31616 (or 31603 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31330232141 its reverse (14123203313), we get a palindrome (45453435454).

The spelling of 31330232141 in words is "thirty-one billion, three hundred thirty million, two hundred thirty-two thousand, one hundred forty-one".