31213112014234 has 32 divisors (see below), whose sum is σ = 50510882820816. Its totient is φ = 14410878443520.

The previous prime is 31213112014213. The next prime is 31213112014237. The reversal of 31213112014234 is 43241021131213.

It can be written as a sum of positive squares in 8 ways, for example, as 25078311230625 + 6134800783609 = 5007825^2 + 2476853^2 .

It is a super-2 number, since 2×31213112014234² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31213112014237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54062974 + ... + 54637270.

Almost surely, 2^{31213112014234} is an apocalyptic number.

31213112014234 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31213112014234 is a deficient number, since it is larger than the sum of its proper divisors (19297770806582).

31213112014234 is a wasteful number, since it uses less digits than its factorization.

31213112014234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604530.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 31213112014234 its reverse (43241021131213), we get a palindrome (74454133145447).

The spelling of 31213112014234 in words is "thirty-one trillion, two hundred thirteen billion, one hundred twelve million, fourteen thousand, two hundred thirty-four".