31110100121011 has 16 divisors (see below), whose sum is σ = 31656092636160. Its totient is φ = 30567939030720.

The previous prime is 31110100120961. The next prime is 31110100121071. The reversal of 31110100121011 is 11012100101113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31110100121011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31110100120982 and 31110100121000.

It is not an unprimeable number, because it can be changed into a prime (31110100121071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196331631 + ... + 196490023.

It is an arithmetic number, because the mean of its divisors is an integer number (1978505789760).

Almost surely, 2^{31110100121011} is an apocalyptic number.

31110100121011 is a deficient number, since it is larger than the sum of its proper divisors (545992515149).

31110100121011 is a wasteful number, since it uses less digits than its factorization.

31110100121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170466.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 31110100121011 its reverse (11012100101113), we get a palindrome (42122200222124).

The spelling of 31110100121011 in words is "thirty-one trillion, one hundred ten billion, one hundred million, one hundred twenty-one thousand, eleven".