31431113204101 has 16 divisors (see below), whose sum is σ = 33886042624000. Its totient is φ = 28981505481408.

The previous prime is 31431113204089. The next prime is 31431113204123. The reversal of 31431113204101 is 10140231113413.

It is a cyclic number.

It is not a de Polignac number, because 31431113204101 - 2³⁵ = 31396753465733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431113204501) 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, 52693675 + ... + 53286823.

It is an arithmetic number, because the mean of its divisors is an integer number (2117877664000).

Almost surely, 2^{31431113204101} is an apocalyptic number.

It is an amenable number.

31431113204101 is a deficient number, since it is larger than the sum of its proper divisors (2454929419899).

31431113204101 is a wasteful number, since it uses less digits than its factorization.

31431113204101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597628.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 31431113204101 its reverse (10140231113413), we get a palindrome (41571344317514).

The spelling of 31431113204101 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred thirteen million, two hundred four thousand, one hundred one".