31023130232 has 32 divisors (see below), whose sum is σ = 61712025600. Its totient is φ = 14579447904.

The previous prime is 31023130231. The next prime is 31023130267. The reversal of 31023130232 is 23203132013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023130231) 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, 784238 + ... + 822845.

It is an arithmetic number, because the mean of its divisors is an integer number (1928500800).

Almost surely, 2^31023130232 is an apocalyptic number.

It is an amenable number.

31023130232 is a deficient number, since it is larger than the sum of its proper divisors (30688895368).

31023130232 is a wasteful number, since it uses less digits than its factorization.

31023130232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607235 (or 1607231 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31023130232 its reverse (23203132013), we get a palindrome (54226262245).

The spelling of 31023130232 in words is "thirty-one billion, twenty-three million, one hundred thirty thousand, two hundred thirty-two".