31323132022120 has 32 divisors (see below), whose sum is σ = 70842213114120. Its totient is φ = 12464334397440.

The previous prime is 31323132022109. The next prime is 31323132022177. The reversal of 31323132022120 is 2122023132313.

It can be written as a sum of positive squares in 4 ways, for example, as 17490847026436 + 13832284995684 = 4182206^2 + 3719178^2 .

It is a super-2 number, since 2×31323132022120² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2028692541 + ... + 2028707980.

Almost surely, 2^{31323132022120} is an apocalyptic number.

It is an amenable number.

31323132022120 is an abundant number, since it is smaller than the sum of its proper divisors (39519081092000).

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

31323132022120 is a wasteful number, since it uses less digits than its factorization.

31323132022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057400725 (or 4057400721 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31323132022120 its reverse (2122023132313), we get a palindrome (33445155154433).

The spelling of 31323132022120 in words is "thirty-one trillion, three hundred twenty-three billion, one hundred thirty-two million, twenty-two thousand, one hundred twenty".