31204200000 has 336 divisors, whose sum is σ = 104244452928. Its totient is φ = 8236800000.

The previous prime is 31204199993. The next prime is 31204200017. The reversal of 31204200000 is 240213.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78599802 + ... + 78600198.

It is an arithmetic number, because the mean of its divisors is an integer number (310251348).

Almost surely, 2^31204200000 is an apocalyptic number.

31204200000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31204200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52122226464).

31204200000 is an abundant number, since it is smaller than the sum of its proper divisors (73040252928).

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

31204200000 is an equidigital number, since it uses as much as digits as its factorization.

31204200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 31204200000 its reverse (240213), we get a palindrome (31204440213).

The spelling of 31204200000 in words is "thirty-one billion, two hundred four million, two hundred thousand".