31001113200000 has 192 divisors, whose sum is σ = 102926799919440. Its totient is φ = 8266963200000.

The previous prime is 31001113199909. The next prime is 31001113200037. The reversal of 31001113200000 is 231110013.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×31001113200000² (a number of 28 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 11717131 + ... + 14117130.

Almost surely, 2^{31001113200000} is an apocalyptic number.

31001113200000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31001113200000 is an abundant number, since it is smaller than the sum of its proper divisors (71925686719440).

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

31001113200000 is an frugal number, since it uses more digits than its factorization.

31001113200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25834303 (or 25834271 counting only the distinct ones).

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

Adding to 31001113200000 its reverse (231110013), we get a palindrome (31001344310013).

The spelling of 31001113200000 in words is "thirty-one trillion, one billion, one hundred thirteen million, two hundred thousand".