31120010011 has 16 divisors (see below), whose sum is σ = 32151762720. Its totient is φ = 30110227200.

The previous prime is 31120010003. The next prime is 31120010027. The reversal of 31120010011 is 11001002113.

It is a cyclic number.

It is not a de Polignac number, because 31120010011 - 2³ = 31120010003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31120010011.

It is not an unprimeable number, because it can be changed into a prime (31120013011) 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, 784296 + ... + 823018.

It is an arithmetic number, because the mean of its divisors is an integer number (2009485170).

Almost surely, 2^31120010011 is an apocalyptic number.

31120010011 is a deficient number, since it is larger than the sum of its proper divisors (1031752709).

31120010011 is a wasteful number, since it uses less digits than its factorization.

31120010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39006.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 31120010011 its reverse (11001002113), we get a palindrome (42121012124).

The spelling of 31120010011 in words is "thirty-one billion, one hundred twenty million, ten thousand, eleven".