31004030144 has 14 divisors (see below), whose sum is σ = 61523622444. Its totient is φ = 15502015040.

The previous prime is 31004030069. The next prime is 31004030149. The reversal of 31004030144 is 44103040013.

It is a happy number.

It is a super-2 number, since 2×31004030144² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31004030149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242218922 + ... + 242219049.

Almost surely, 2^31004030144 is an apocalyptic number.

It is an amenable number.

31004030144 is a deficient number, since it is larger than the sum of its proper divisors (30519592300).

31004030144 is an equidigital number, since it uses as much as digits as its factorization.

31004030144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484437983 (or 484437973 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31004030144 its reverse (44103040013), we get a palindrome (75107070157).

The spelling of 31004030144 in words is "thirty-one billion, four million, thirty thousand, one hundred forty-four".