315520113045450 has 96 divisors (see below), whose sum is σ = 808078248432000. Its totient is φ = 81412386681600.

The previous prime is 315520113045443. The next prime is 315520113045457. The reversal of 315520113045450 is 54540311025513.

It is an interprime number because it is at equal distance from previous prime (315520113045443) and next prime (315520113045457).

It is a junction number, because it is equal to n+sod(n) for n = 315520113045399 and 315520113045408.

It is not an unprimeable number, because it can be changed into a prime (315520113045457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156040950 + ... + 158050049.

It is an arithmetic number, because the mean of its divisors is an integer number (8417481754500).

Almost surely, 2^{315520113045450} is an apocalyptic number.

315520113045450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

315520113045450 is an abundant number, since it is smaller than the sum of its proper divisors (492558135386550).

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

315520113045450 is a wasteful number, since it uses less digits than its factorization.

315520113045450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314091232 (or 314091227 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 315520113045450 in words is "three hundred fifteen trillion, five hundred twenty billion, one hundred thirteen million, forty-five thousand, four hundred fifty".