31003101012 has 48 divisors (see below), whose sum is σ = 77919972480. Its totient is φ = 9537610368.

The previous prime is 31003100951. The next prime is 31003101053. The reversal of 31003101012 is 21010130013.

It is a super-3 number, since 3×31003101012³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976378 + ... + 1007630.

It is an arithmetic number, because the mean of its divisors is an integer number (1623332760).

Almost surely, 2^31003101012 is an apocalyptic number.

It is an amenable number.

31003101012 is an abundant number, since it is smaller than the sum of its proper divisors (46916871468).

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

31003101012 is a wasteful number, since it uses less digits than its factorization.

31003101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37632 (or 37630 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31003101012 its reverse (21010130013), we get a palindrome (52013231025).

The spelling of 31003101012 in words is "thirty-one billion, three million, one hundred one thousand, twelve".