31423013222101 has 4 divisors (see below), whose sum is σ = 31423126635232. Its totient is φ = 31422899808972.

The previous prime is 31423013222099. The next prime is 31423013222113. The reversal of 31423013222101 is 10122231032413.

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 31423013222101 - 2¹ = 31423013222099 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 (31423013222171) 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, 56289945 + ... + 56845438.

It is an arithmetic number, because the mean of its divisors is an integer number (7855781658808).

Almost surely, 2^{31423013222101} is an apocalyptic number.

It is an amenable number.

31423013222101 is a deficient number, since it is larger than the sum of its proper divisors (113413131).

31423013222101 is a wasteful number, since it uses less digits than its factorization.

31423013222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113413130.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 31423013222101 its reverse (10122231032413), we get a palindrome (41545244254514).

The spelling of 31423013222101 in words is "thirty-one trillion, four hundred twenty-three billion, thirteen million, two hundred twenty-two thousand, one hundred one".