1523315420320 has 48 divisors (see below), whose sum is σ = 3598915236840. Its totient is φ = 609312190464.

The previous prime is 1523315420269. The next prime is 1523315420383. The reversal of 1523315420320 is 230245133251.

It can be written as a sum of positive squares in 4 ways, for example, as 1520949959824 + 2365460496 = 1233268^2 + 48636^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9547924 + ... + 9706156.

Almost surely, 2^{1523315420320} is an apocalyptic number.

1523315420320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1523315420320 is an abundant number, since it is smaller than the sum of its proper divisors (2075599816520).

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

1523315420320 is a wasteful number, since it uses less digits than its factorization.

1523315420320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218417 (or 218409 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 1523315420320 in words is "one trillion, five hundred twenty-three billion, three hundred fifteen million, four hundred twenty thousand, three hundred twenty".