1309742502120 has 192 divisors, whose sum is σ = 4753880651520. Its totient is φ = 322398123264.

The previous prime is 1309742502007. The next prime is 1309742502139. The reversal of 1309742502120 is 212052479031.

1309742502120 is a `hidden beast` number, since 1 + 3 + 0 + 97 + 42 + 502 + 1 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5056224 + ... + 5308943.

It is an arithmetic number, because the mean of its divisors is an integer number (24759795060).

Almost surely, 2^{1309742502120} is an apocalyptic number.

1309742502120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1309742502120 is an abundant number, since it is smaller than the sum of its proper divisors (3444138149400).

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

1309742502120 is a wasteful number, since it uses less digits than its factorization.

1309742502120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10365206 (or 10365190 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 1309742502120 in words is "one trillion, three hundred nine billion, seven hundred forty-two million, five hundred two thousand, one hundred twenty".