31203031120124 has 12 divisors (see below), whose sum is σ = 57479267853000. Its totient is φ = 14780383162128.

The previous prime is 31203031120123. The next prime is 31203031120153. The reversal of 31203031120124 is 42102113030213.

It is a super-2 number, since 2×31203031120124² (a number of 28 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 31203031120124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31203031120123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205283099399 + ... + 205283099550.

It is an arithmetic number, because the mean of its divisors is an integer number (4789938987750).

Almost surely, 2^{31203031120124} is an apocalyptic number.

It is an amenable number.

31203031120124 is a deficient number, since it is larger than the sum of its proper divisors (26276236732876).

31203031120124 is a wasteful number, since it uses less digits than its factorization.

31203031120124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410566198972 (or 410566198970 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31203031120124 its reverse (42102113030213), we get a palindrome (73305144150337).

The spelling of 31203031120124 in words is "thirty-one trillion, two hundred three billion, thirty-one million, one hundred twenty thousand, one hundred twenty-four".