1245315405320 has 64 divisors (see below), whose sum is σ = 3202672711680. Its totient is φ = 426907535616.

The previous prime is 1245315405319. The next prime is 1245315405343. The reversal of 1245315405320 is 235045135421.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 1799342 + ... + 2393378.

It is an arithmetic number, because the mean of its divisors is an integer number (50041761120).

Almost surely, 2^{1245315405320} is an apocalyptic number.

1245315405320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245315405320 is an abundant number, since it is smaller than the sum of its proper divisors (1957357306360).

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

1245315405320 is a wasteful number, since it uses less digits than its factorization.

1245315405320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601542 (or 601538 counting only the distinct ones).

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

The spelling of 1245315405320 in words is "one trillion, two hundred forty-five billion, three hundred fifteen million, four hundred five thousand, three hundred twenty".