31437020152 has 32 divisors (see below), whose sum is σ = 62972841600. Its totient is φ = 14668958304.

The previous prime is 31437020137. The next prime is 31437020221. The reversal of 31437020152 is 25102073413.

It is a self number, because there is not a number n which added to its sum of digits gives 31437020152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533268 + ... + 1553635.

It is an arithmetic number, because the mean of its divisors is an integer number (1967901300).

Almost surely, 2^31437020152 is an apocalyptic number.

It is an amenable number.

31437020152 is an abundant number, since it is smaller than the sum of its proper divisors (31535821448).

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

31437020152 is a wasteful number, since it uses less digits than its factorization.

31437020152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086995 (or 3086991 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 31437020152 its reverse (25102073413), we get a palindrome (56539093565).

The spelling of 31437020152 in words is "thirty-one billion, four hundred thirty-seven million, twenty thousand, one hundred fifty-two".