431040122320 has 40 divisors (see below), whose sum is σ = 1014853973760. Its totient is φ = 170233564800.

The previous prime is 431040122311. The next prime is 431040122329. The reversal of 431040122320 is 23221040134.

It is an interprime number because it is at equal distance from previous prime (431040122311) and next prime (431040122329).

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 431040122291 and 431040122300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431040122329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34094956 + ... + 34107595.

It is an arithmetic number, because the mean of its divisors is an integer number (25371349344).

Almost surely, 2^431040122320 is an apocalyptic number.

431040122320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431040122320 is an abundant number, since it is smaller than the sum of its proper divisors (583813851440).

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

431040122320 is a wasteful number, since it uses less digits than its factorization.

431040122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68202643 (or 68202637 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 431040122320 its reverse (23221040134), we get a palindrome (454261162454).

The spelling of 431040122320 in words is "four hundred thirty-one billion, forty million, one hundred twenty-two thousand, three hundred twenty".