31311421411042 has 32 divisors (see below), whose sum is σ = 47708650503360. Its totient is φ = 15408940884480.

The previous prime is 31311421411033. The next prime is 31311421411079. The reversal of 31311421411042 is 24011412411313.

It is a super-2 number, since 2×31311421411042² (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 31311421411042.

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, 810926317 + ... + 810964927.

It is an arithmetic number, because the mean of its divisors is an integer number (1490895328230).

Almost surely, 2^{31311421411042} is an apocalyptic number.

31311421411042 is a deficient number, since it is larger than the sum of its proper divisors (16397229092318).

31311421411042 is a wasteful number, since it uses less digits than its factorization.

31311421411042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43666.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 31311421411042 its reverse (24011412411313), we get a palindrome (55322833822355).

The spelling of 31311421411042 in words is "thirty-one trillion, three hundred eleven billion, four hundred twenty-one million, four hundred eleven thousand, forty-two".