31213343234110 has 32 divisors (see below), whose sum is σ = 58028220260352. Its totient is φ = 12075956401440.

The previous prime is 31213343234093. The next prime is 31213343234111. The reversal of 31213343234110 is 1143234331213.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213343234111) 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 15 ways as a sum of consecutive naturals, for example, 27050944 + ... + 28181203.

It is an arithmetic number, because the mean of its divisors is an integer number (1813381883136).

Almost surely, 2^{31213343234110} is an apocalyptic number.

31213343234110 is a deficient number, since it is larger than the sum of its proper divisors (26814877026242).

31213343234110 is a wasteful number, since it uses less digits than its factorization.

31213343234110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55234008.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 31213343234110 its reverse (1143234331213), we get a palindrome (32356577565323).

The spelling of 31213343234110 in words is "thirty-one trillion, two hundred thirteen billion, three hundred forty-three million, two hundred thirty-four thousand, one hundred ten".