312203005240 has 64 divisors (see below), whose sum is σ = 816414681600. Its totient is φ = 105226770048.

The previous prime is 312203005211. The next prime is 312203005319. The reversal of 312203005240 is 42500302213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9432724 + ... + 9465763.

It is an arithmetic number, because the mean of its divisors is an integer number (12756479400).

Almost surely, 2^312203005240 is an apocalyptic number.

It is an amenable number.

312203005240 is an abundant number, since it is smaller than the sum of its proper divisors (504211676360).

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

312203005240 is a wasteful number, since it uses less digits than its factorization.

312203005240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18898564 (or 18898560 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 312203005240 its reverse (42500302213), we get a palindrome (354703307453).

The spelling of 312203005240 in words is "three hundred twelve billion, two hundred three million, five thousand, two hundred forty".