31204410420 has 24 divisors (see below), whose sum is σ = 87372349344. Its totient is φ = 8321176096.

The previous prime is 31204410407. The next prime is 31204410427. The reversal of 31204410420 is 2401440213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204410427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260036694 + ... + 260036813.

It is an arithmetic number, because the mean of its divisors is an integer number (3640514556).

Almost surely, 2^31204410420 is an apocalyptic number.

31204410420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31204410420 is an abundant number, since it is smaller than the sum of its proper divisors (56167938924).

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

31204410420 is a wasteful number, since it uses less digits than its factorization.

31204410420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520073519 (or 520073517 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31204410420 its reverse (2401440213), we get a palindrome (33605850633).

The spelling of 31204410420 in words is "thirty-one billion, two hundred four million, four hundred ten thousand, four hundred twenty".