31000111110009 has 24 divisors (see below), whose sum is σ = 46322339132160. Its totient is φ = 19953950620128.

The previous prime is 31000111109971. The next prime is 31000111110019. The reversal of 31000111110009 is 90001111100013.

It is not a de Polignac number, because 31000111110009 - 2⁸ = 31000111109753 is a prime.

It is a super-2 number, since 2×31000111110009² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31000111109973 and 31000111110000.

It is not an unprimeable number, because it can be changed into a prime (31000111110019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45085054 + ... + 45767480.

It is an arithmetic number, because the mean of its divisors is an integer number (1930097463840).

Almost surely, 2^{31000111110009} is an apocalyptic number.

It is an amenable number.

31000111110009 is a deficient number, since it is larger than the sum of its proper divisors (15322228022151).

31000111110009 is a wasteful number, since it uses less digits than its factorization.

31000111110009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856509 (or 856506 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 18.

The spelling of 31000111110009 in words is "thirty-one trillion, one hundred eleven million, one hundred ten thousand, nine".