31113110000 has 100 divisors (see below), whose sum is σ = 86089280112. Its totient is φ = 10667328000.

The previous prime is 31113109991. The next prime is 31113110053. The reversal of 31113110000 is 1131113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×31113110000² (a number of 22 digits) contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 152237 + ... + 292236.

Almost surely, 2^31113110000 is an apocalyptic number.

It is an amenable number.

31113110000 is an abundant number, since it is smaller than the sum of its proper divisors (54976170112).

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

31113110000 is an equidigital number, since it uses as much as digits as its factorization.

31113110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444508 (or 444487 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 31113110000 its reverse (1131113), we get a palindrome (31114241113).

The spelling of 31113110000 in words is "thirty-one billion, one hundred thirteen million, one hundred ten thousand".