3920321431204 has 24 divisors (see below), whose sum is σ = 7264255338648. Its totient is φ = 1844824043520.

The previous prime is 3920321431177. The next prime is 3920321431219. The reversal of 3920321431204 is 4021341230293.

It can be written as a sum of positive squares in 4 ways, for example, as 2484753216100 + 1435568215104 = 1576310^2 + 1198152^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 3920321431204.

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, 3532044 + ... + 4507324.

It is an arithmetic number, because the mean of its divisors is an integer number (302677305777).

Almost surely, 2^{3920321431204} is an apocalyptic number.

3920321431204 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3920321431204 is a deficient number, since it is larger than the sum of its proper divisors (3343933907444).

3920321431204 is a wasteful number, since it uses less digits than its factorization.

3920321431204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034415 (or 1034413 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 3920321431204 its reverse (4021341230293), we get a palindrome (7941662661497).

The spelling of 3920321431204 in words is "three trillion, nine hundred twenty billion, three hundred twenty-one million, four hundred thirty-one thousand, two hundred four".