31401870213 has 16 divisors (see below), whose sum is σ = 48028360320. Its totient is φ = 17877216576.

The previous prime is 31401870211. The next prime is 31401870221. The reversal of 31401870213 is 31207810413.

It is not a de Polignac number, because 31401870213 - 2¹ = 31401870211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31401870211) 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, 2773770 + ... + 2785067.

It is an arithmetic number, because the mean of its divisors is an integer number (3001772520).

Almost surely, 2^31401870213 is an apocalyptic number.

It is an amenable number.

31401870213 is a deficient number, since it is larger than the sum of its proper divisors (16626490107).

31401870213 is a wasteful number, since it uses less digits than its factorization.

31401870213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559116.

The product of its (nonzero) digits is 4032, while the sum is 30.

The spelling of 31401870213 in words is "thirty-one billion, four hundred one million, eight hundred seventy thousand, two hundred thirteen".