1305240555000 has 160 divisors (see below), whose sum is σ = 4218178813200. Its totient is φ = 336061824000.

The previous prime is 1305240554983. The next prime is 1305240555011. The reversal of 1305240555000 is 5550425031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1065277 + ... + 1935276.

Almost surely, 2^{1305240555000} is an apocalyptic number.

1305240555000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305240555000 is an abundant number, since it is smaller than the sum of its proper divisors (2912938258200).

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

1305240555000 is a wasteful number, since it uses less digits than its factorization.

1305240555000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000611 (or 3000592 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 1305240555000 in words is "one trillion, three hundred five billion, two hundred forty million, five hundred fifty-five thousand".