315255421340 has 24 divisors (see below), whose sum is σ = 663059652192. Its totient is φ = 125907260480.

The previous prime is 315255421331. The next prime is 315255421357. The reversal of 315255421340 is 43124552513.

It is a self number, because there is not a number n which added to its sum of digits gives 315255421340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12168491 + ... + 12194370.

It is an arithmetic number, because the mean of its divisors is an integer number (27627485508).

Almost surely, 2^315255421340 is an apocalyptic number.

It is an amenable number.

315255421340 is an abundant number, since it is smaller than the sum of its proper divisors (347804230852).

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

315255421340 is a wasteful number, since it uses less digits than its factorization.

315255421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24363517 (or 24363515 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 315255421340 its reverse (43124552513), we get a palindrome (358379973853).

The spelling of 315255421340 in words is "three hundred fifteen billion, two hundred fifty-five million, four hundred twenty-one thousand, three hundred forty".