31514023145 has 16 divisors (see below), whose sum is σ = 41337432000. Its totient is φ = 22873339200.

The previous prime is 31514023133. The next prime is 31514023147. The reversal of 31514023145 is 54132041513.

It is not a de Polignac number, because 31514023145 - 2⁸ = 31514022889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31514023147) 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, 546686 + ... + 601575.

It is an arithmetic number, because the mean of its divisors is an integer number (2583589500).

Almost surely, 2^31514023145 is an apocalyptic number.

It is an amenable number.

31514023145 is a deficient number, since it is larger than the sum of its proper divisors (9823408855).

31514023145 is a wasteful number, since it uses less digits than its factorization.

31514023145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148776.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 31514023145 its reverse (54132041513), we get a palindrome (85646064658).

The spelling of 31514023145 in words is "thirty-one billion, five hundred fourteen million, twenty-three thousand, one hundred forty-five".