3131112110201 has 4 divisors (see below), whose sum is σ = 3131123655504. Its totient is φ = 3131100564900.

The previous prime is 3131112110183. The next prime is 3131112110239. The reversal of 3131112110201 is 1020112111313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3131112110201 - 2³⁸ = 2856234203257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3131112110201.

It is not an unprimeable number, because it can be changed into a prime (3131112110801) 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, 5355815 + ... + 5911596.

It is an arithmetic number, because the mean of its divisors is an integer number (782780913876).

Almost surely, 2^{3131112110201} is an apocalyptic number.

It is an amenable number.

3131112110201 is a deficient number, since it is larger than the sum of its proper divisors (11545303).

3131112110201 is a wasteful number, since it uses less digits than its factorization.

3131112110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11545302.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 3131112110201 its reverse (1020112111313), we get a palindrome (4151224221514).

The spelling of 3131112110201 in words is "three trillion, one hundred thirty-one billion, one hundred twelve million, one hundred ten thousand, two hundred one".