31545140233232 has 20 divisors (see below), whose sum is σ = 61227268205520. Its totient is φ = 15744554889888.

The previous prime is 31545140233231. The next prime is 31545140233241. The reversal of 31545140233232 is 23233204154513.

It is not an unprimeable number, because it can be changed into a prime (31545140233231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750942382 + ... + 1750960397.

It is an arithmetic number, because the mean of its divisors is an integer number (3061363410276).

Almost surely, 2^{31545140233232} is an apocalyptic number.

It is an amenable number.

31545140233232 is a deficient number, since it is larger than the sum of its proper divisors (29682127972288).

31545140233232 is a wasteful number, since it uses less digits than its factorization.

31545140233232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501903350 (or 3501903344 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 31545140233232 its reverse (23233204154513), we get a palindrome (54778344387745).

The spelling of 31545140233232 in words is "thirty-one trillion, five hundred forty-five billion, one hundred forty million, two hundred thirty-three thousand, two hundred thirty-two".