31132023130220 has 12 divisors (see below), whose sum is σ = 65377248573504. Its totient is φ = 12452809252080.

The previous prime is 31132023130163. The next prime is 31132023130237. The reversal of 31132023130220 is 2203132023113.

It is a super-3 number, since 3×31132023130220³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778300578236 + ... + 778300578275.

It is an arithmetic number, because the mean of its divisors is an integer number (5448104047792).

Almost surely, 2^{31132023130220} is an apocalyptic number.

It is an amenable number.

31132023130220 is an abundant number, since it is smaller than the sum of its proper divisors (34245225443284).

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

31132023130220 is a wasteful number, since it uses less digits than its factorization.

31132023130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556601156520 (or 1556601156518 counting only the distinct ones).

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

Adding to 31132023130220 its reverse (2203132023113), we get a palindrome (33335155153333).

The spelling of 31132023130220 in words is "thirty-one trillion, one hundred thirty-two billion, twenty-three million, one hundred thirty thousand, two hundred twenty".