31123230001332 has 48 divisors (see below), whose sum is σ = 83122378588032. Its totient is φ = 8878733723520.

The previous prime is 31123230001291. The next prime is 31123230001337. The reversal of 31123230001332 is 23310003232113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31123230001337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283647019 + ... + 283756722.

It is an arithmetic number, because the mean of its divisors is an integer number (1731716220584).

Almost surely, 2^{31123230001332} is an apocalyptic number.

It is an amenable number.

31123230001332 is an abundant number, since it is smaller than the sum of its proper divisors (51999148586700).

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

31123230001332 is a wasteful number, since it uses less digits than its factorization.

31123230001332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567404408 (or 567404406 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31123230001332 its reverse (23310003232113), we get a palindrome (54433233233445).

The spelling of 31123230001332 in words is "thirty-one trillion, one hundred twenty-three billion, two hundred thirty million, one thousand, three hundred thirty-two".