31001202132 has 12 divisors (see below), whose sum is σ = 72336138336. Its totient is φ = 10333734040.

The previous prime is 31001201993. The next prime is 31001202157. The reversal of 31001202132 is 23120210013.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×31001202132² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1291716744 + ... + 1291716767.

It is an arithmetic number, because the mean of its divisors is an integer number (6028011528).

Almost surely, 2^31001202132 is an apocalyptic number.

It is an amenable number.

31001202132 is an abundant number, since it is smaller than the sum of its proper divisors (41334936204).

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

31001202132 is a wasteful number, since it uses less digits than its factorization.

31001202132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583433518 (or 2583433516 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31001202132 its reverse (23120210013), we get a palindrome (54121412145).

The spelling of 31001202132 in words is "thirty-one billion, one million, two hundred two thousand, one hundred thirty-two".