31032255380 has 24 divisors (see below), whose sum is σ = 74477413248. Its totient is φ = 10639630368.

The previous prime is 31032255341. The next prime is 31032255421. The reversal of 31032255380 is 8355223013.

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, 110829344 + ... + 110829623.

It is an arithmetic number, because the mean of its divisors is an integer number (3103225552).

Almost surely, 2^31032255380 is an apocalyptic number.

It is an amenable number.

31032255380 is an abundant number, since it is smaller than the sum of its proper divisors (43445157868).

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

31032255380 is a wasteful number, since it uses less digits than its factorization.

31032255380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221658983 (or 221658981 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 31032255380 its reverse (8355223013), we get a palindrome (39387478393).

The spelling of 31032255380 in words is "thirty-one billion, thirty-two million, two hundred fifty-five thousand, three hundred eighty".