31233004140 has 48 divisors (see below), whose sum is σ = 94179522528. Its totient is φ = 7688123904.

The previous prime is 31233004097. The next prime is 31233004151. The reversal of 31233004140 is 4140033213.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20020377 + ... + 20021936.

It is an arithmetic number, because the mean of its divisors is an integer number (1962073386).

Almost surely, 2^31233004140 is an apocalyptic number.

31233004140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31233004140 is an abundant number, since it is smaller than the sum of its proper divisors (62946518388).

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

31233004140 is a wasteful number, since it uses less digits than its factorization.

31233004140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40042338 (or 40042336 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31233004140 its reverse (4140033213), we get a palindrome (35373037353).

The spelling of 31233004140 in words is "thirty-one billion, two hundred thirty-three million, four thousand, one hundred forty".