31140200021244 has 48 divisors (see below), whose sum is σ = 72738614108160. Its totient is φ = 10368905025600.

The previous prime is 31140200021171. The next prime is 31140200021291. The reversal of 31140200021244 is 44212000204113.

It is a congruent number.

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, 113958202 + ... + 114231134.

It is an arithmetic number, because the mean of its divisors is an integer number (1515387793920).

Almost surely, 2^{31140200021244} is an apocalyptic number.

It is an amenable number.

31140200021244 is an abundant number, since it is smaller than the sum of its proper divisors (41598414086916).

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

31140200021244 is a wasteful number, since it uses less digits than its factorization.

31140200021244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283130 (or 283128 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31140200021244 its reverse (44212000204113), we get a palindrome (75352200225357).

The spelling of 31140200021244 in words is "thirty-one trillion, one hundred forty billion, two hundred million, twenty-one thousand, two hundred forty-four".