431012002520 has 64 divisors (see below), whose sum is σ = 1058659338240. Its totient is φ = 156624854400.

The previous prime is 431012002471. The next prime is 431012002529. The reversal of 431012002520 is 25200210134.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 431012002492 and 431012002501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431012002529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314279 + ... + 980201.

It is an arithmetic number, because the mean of its divisors is an integer number (16541552160).

Almost surely, 2^431012002520 is an apocalyptic number.

431012002520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431012002520 is an abundant number, since it is smaller than the sum of its proper divisors (627647335720).

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

431012002520 is a wasteful number, since it uses less digits than its factorization.

431012002520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667416 (or 667412 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 431012002520 its reverse (25200210134), we get a palindrome (456212212654).

The spelling of 431012002520 in words is "four hundred thirty-one billion, twelve million, two thousand, five hundred twenty".