315452120203220 has 192 divisors, whose sum is σ = 899436363840000. Its totient is φ = 89739681546240.

The previous prime is 315452120203193. The next prime is 315452120203247. The reversal of 315452120203220 is 22302021254513.

It is an interprime number because it is at equal distance from previous prime (315452120203193) and next prime (315452120203247).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 86739845 + ... + 90303404.

It is an arithmetic number, because the mean of its divisors is an integer number (4684564395000).

Almost surely, 2^{315452120203220} is an apocalyptic number.

It is an amenable number.

315452120203220 is an abundant number, since it is smaller than the sum of its proper divisors (583984243636780).

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

315452120203220 is a wasteful number, since it uses less digits than its factorization.

315452120203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177043378 (or 177043376 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 315452120203220 its reverse (22302021254513), we get a palindrome (337754141457733).

The spelling of 315452120203220 in words is "three hundred fifteen trillion, four hundred fifty-two billion, one hundred twenty million, two hundred three thousand, two hundred twenty".