31332230120 has 32 divisors (see below), whose sum is σ = 74644432200. Its totient is φ = 11795662848.

The previous prime is 31332230107. The next prime is 31332230123. The reversal of 31332230120 is 2103223313.

It can be written as a sum of positive squares in 4 ways, for example, as 19637537956 + 11694692164 = 140134^2 + 108142^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 31332230092 and 31332230101.

It is not an unprimeable number, because it can be changed into a prime (31332230123) 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, 23037725 + ... + 23039084.

Almost surely, 2^31332230120 is an apocalyptic number.

It is an amenable number.

31332230120 is an abundant number, since it is smaller than the sum of its proper divisors (43312202080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31332230120 is a wasteful number, since it uses less digits than its factorization.

31332230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46076837 (or 46076833 counting only the distinct ones).

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

Adding to 31332230120 its reverse (2103223313), we get a palindrome (33435453433).

The spelling of 31332230120 in words is "thirty-one billion, three hundred thirty-two million, two hundred thirty thousand, one hundred twenty".