31445521014234 has 32 divisors (see below), whose sum is σ = 62995000749120. Its totient is φ = 10464525171072.

The previous prime is 31445521014223. The next prime is 31445521014239. The reversal of 31445521014234 is 43241012554413.

It is a junction number, because it is equal to n+sod(n) for n = 31445521014192 and 31445521014201.

It is not an unprimeable number, because it can be changed into a prime (31445521014239) 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, 9747414 + ... + 12565950.

It is an arithmetic number, because the mean of its divisors is an integer number (1968593773410).

Almost surely, 2^{31445521014234} is an apocalyptic number.

31445521014234 is an abundant number, since it is smaller than the sum of its proper divisors (31549479734886).

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

31445521014234 is a wasteful number, since it uses less digits than its factorization.

31445521014234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821614.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 31445521014234 its reverse (43241012554413), we get a palindrome (74686533568647).

The spelling of 31445521014234 in words is "thirty-one trillion, four hundred forty-five billion, five hundred twenty-one million, fourteen thousand, two hundred thirty-four".