31054431352 has 64 divisors (see below), whose sum is σ = 70584696000. Its totient is φ = 12503924736.

The previous prime is 31054431349. The next prime is 31054431361. The reversal of 31054431352 is 25313445013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513024 + ... + 570352.

It is an arithmetic number, because the mean of its divisors is an integer number (1102885875).

Almost surely, 2^31054431352 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 31054431352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35292348000).

31054431352 is an abundant number, since it is smaller than the sum of its proper divisors (39530264648).

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

31054431352 is a wasteful number, since it uses less digits than its factorization.

31054431352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57928 (or 57924 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 31054431352 its reverse (25313445013), we get a palindrome (56367876365).

The spelling of 31054431352 in words is "thirty-one billion, fifty-four million, four hundred thirty-one thousand, three hundred fifty-two".