31420123300 has 72 divisors (see below), whose sum is σ = 71961192800. Its totient is φ = 11874885120.

The previous prime is 31420123279. The next prime is 31420123327. The reversal of 31420123300 is 332102413.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 698284 + ... + 741916.

Almost surely, 2^31420123300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31420123300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35980596400).

31420123300 is an abundant number, since it is smaller than the sum of its proper divisors (40541069500).

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

31420123300 is a wasteful number, since it uses less digits than its factorization.

31420123300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44045 (or 44038 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31420123300 its reverse (332102413), we get a palindrome (31752225713).

The spelling of 31420123300 in words is "thirty-one billion, four hundred twenty million, one hundred twenty-three thousand, three hundred".