31111350104 has 16 divisors (see below), whose sum is σ = 60345291600. Its totient is φ = 15019272352.

The previous prime is 31111350091. The next prime is 31111350119. The reversal of 31111350104 is 40105311113.

It is a super-2 number, since 2×31111350104² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67050092 + ... + 67050555.

It is an arithmetic number, because the mean of its divisors is an integer number (3771580725).

Almost surely, 2^31111350104 is an apocalyptic number.

It is an amenable number.

31111350104 is a deficient number, since it is larger than the sum of its proper divisors (29233941496).

31111350104 is a wasteful number, since it uses less digits than its factorization.

31111350104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134100682 (or 134100678 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 31111350104 its reverse (40105311113), we get a palindrome (71216661217).

The spelling of 31111350104 in words is "thirty-one billion, one hundred eleven million, three hundred fifty thousand, one hundred four".