31020421294 has 16 divisors (see below), whose sum is σ = 47206080000. Its totient is φ = 15285404160.

The previous prime is 31020421291. The next prime is 31020421337. The reversal of 31020421294 is 49212402013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020421291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97299 + ... + 267409.

It is an arithmetic number, because the mean of its divisors is an integer number (2950380000).

Almost surely, 2^31020421294 is an apocalyptic number.

31020421294 is a deficient number, since it is larger than the sum of its proper divisors (16185658706).

31020421294 is a wasteful number, since it uses less digits than its factorization.

31020421294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171435.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 31020421294 in words is "thirty-one billion, twenty million, four hundred twenty-one thousand, two hundred ninety-four".