1313555042500 has 30 divisors (see below), whose sum is σ = 2872482172406. Its totient is φ = 525422016000.

The previous prime is 1313555042489. The next prime is 1313555042521. The reversal of 1313555042500 is 52405553131.

It can be written as a sum of positive squares in 5 ways, for example, as 934377423424 + 379177619076 = 966632^2 + 615774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 262708509 + ... + 262713508.

Almost surely, 2^{1313555042500} is an apocalyptic number.

1313555042500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313555042500 is an abundant number, since it is smaller than the sum of its proper divisors (1558927129906).

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

1313555042500 is an equidigital number, since it uses as much as digits as its factorization.

1313555042500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525422041 (or 525422024 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 1313555042500 in words is "one trillion, three hundred thirteen billion, five hundred fifty-five million, forty-two thousand, five hundred".