231302022420 has 48 divisors (see below), whose sum is σ = 740166473088. Its totient is φ = 52869033600.

The previous prime is 231302022359. The next prime is 231302022437. The reversal of 231302022420 is 24220203132.

231302022420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275359131 + ... + 275359970.

It is an arithmetic number, because the mean of its divisors is an integer number (15420134856).

Almost surely, 2^231302022420 is an apocalyptic number.

231302022420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231302022420 is an abundant number, since it is smaller than the sum of its proper divisors (508864450668).

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

231302022420 is a wasteful number, since it uses less digits than its factorization.

231302022420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550719120 (or 550719118 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 231302022420 its reverse (24220203132), we get a palindrome (255522225552).

The spelling of 231302022420 in words is "two hundred thirty-one billion, three hundred two million, twenty-two thousand, four hundred twenty".