31214344120 has 64 divisors (see below), whose sum is σ = 72327168000. Its totient is φ = 12118674048.

The previous prime is 31214344043. The next prime is 31214344121. The reversal of 31214344120 is 2144341213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214344121) 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, 102729 + ... + 270151.

It is an arithmetic number, because the mean of its divisors is an integer number (1130112000).

Almost surely, 2^31214344120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31214344120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36163584000).

31214344120 is an abundant number, since it is smaller than the sum of its proper divisors (41112823880).

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

31214344120 is a wasteful number, since it uses less digits than its factorization.

31214344120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167572 (or 167568 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31214344120 its reverse (2144341213), we get a palindrome (33358685333).

The spelling of 31214344120 in words is "thirty-one billion, two hundred fourteen million, three hundred forty-four thousand, one hundred twenty".