31341213020 has 24 divisors (see below), whose sum is σ = 70879359264. Its totient is φ = 11572140096.

The previous prime is 31341212999. The next prime is 31341213047. The reversal of 31341213020 is 2031214313.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 31341212983 and 31341213001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60271304 + ... + 60271823.

It is an arithmetic number, because the mean of its divisors is an integer number (2953306636).

Almost surely, 2^31341213020 is an apocalyptic number.

It is an amenable number.

31341213020 is an abundant number, since it is smaller than the sum of its proper divisors (39538146244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31341213020 is a wasteful number, since it uses less digits than its factorization.

31341213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120543149 (or 120543147 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31341213020 its reverse (2031214313), we get a palindrome (33372427333).

The spelling of 31341213020 in words is "thirty-one billion, three hundred forty-one million, two hundred thirteen thousand, twenty".