31421413002 has 16 divisors (see below), whose sum is σ = 71820372672. Its totient is φ = 8977546560.

The previous prime is 31421412973. The next prime is 31421413043. The reversal of 31421413002 is 20031412413.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 31421413002.

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, 374064399 + ... + 374064482.

It is an arithmetic number, because the mean of its divisors is an integer number (4488773292).

Almost surely, 2^31421413002 is an apocalyptic number.

31421413002 is an abundant number, since it is smaller than the sum of its proper divisors (40398959670).

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

31421413002 is a wasteful number, since it uses less digits than its factorization.

31421413002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748128893.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31421413002 its reverse (20031412413), we get a palindrome (51452825415).

The spelling of 31421413002 in words is "thirty-one billion, four hundred twenty-one million, four hundred thirteen thousand, two".