31004240124 has 48 divisors (see below), whose sum is σ = 84990648960. Its totient is φ = 8672514240.

The previous prime is 31004240117. The next prime is 31004240131. The reversal of 31004240124 is 42104240013.

It is an interprime number because it is at equal distance from previous prime (31004240117) and next prime (31004240131).

It is a super-2 number, since 2×31004240124² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31004240124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9032154 + ... + 9035585.

It is an arithmetic number, because the mean of its divisors is an integer number (1770638520).

Almost surely, 2^31004240124 is an apocalyptic number.

It is an amenable number.

31004240124 is an abundant number, since it is smaller than the sum of its proper divisors (53986408836).

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

31004240124 is a wasteful number, since it uses less digits than its factorization.

31004240124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18067770 (or 18067768 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31004240124 its reverse (42104240013), we get a palindrome (73108480137).

The spelling of 31004240124 in words is "thirty-one billion, four million, two hundred forty thousand, one hundred twenty-four".