31113011100001 has 4 divisors (see below), whose sum is σ = 31113397922500. Its totient is φ = 31112624277504.

The previous prime is 31113011099983. The next prime is 31113011100043. The reversal of 31113011100001 is 10000111031113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8898766286400 + 22214244813601 = 2983080^2 + 4713199^2 .

It is a cyclic number.

It is not a de Polignac number, because 31113011100001 - 2¹⁵ = 31113011067233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31113011100071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193290576 + ... + 193451473.

It is an arithmetic number, because the mean of its divisors is an integer number (7778349480625).

Almost surely, 2^{31113011100001} is an apocalyptic number.

It is an amenable number.

31113011100001 is a deficient number, since it is larger than the sum of its proper divisors (386822499).

31113011100001 is an equidigital number, since it uses as much as digits as its factorization.

31113011100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386822498.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 31113011100001 its reverse (10000111031113), we get a palindrome (41113122131114).

The spelling of 31113011100001 in words is "thirty-one trillion, one hundred thirteen billion, eleven million, one hundred thousand, one".