31011111104 has 28 divisors (see below), whose sum is σ = 62146970448. Its totient is φ = 15352032000.

The previous prime is 31011111101. The next prime is 31011111151. The reversal of 31011111104 is 40111111013.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31011111101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2392292 + ... + 2405219.

Almost surely, 2^31011111104 is an apocalyptic number.

It is an amenable number.

31011111104 is an abundant number, since it is smaller than the sum of its proper divisors (31135859344).

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

31011111104 is a wasteful number, since it uses less digits than its factorization.

31011111104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4797624 (or 4797614 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 31011111104 its reverse (40111111013), we get a palindrome (71122222117).

Subtracting 31011111104 from its reverse (40111111013), we obtain a palindrome (9099999909).

The spelling of 31011111104 in words is "thirty-one billion, eleven million, one hundred eleven thousand, one hundred four".