1320250561299 has 8 divisors (see below), whose sum is σ = 1955926757520. Its totient is φ = 880167040848.

The previous prime is 1320250561277. The next prime is 1320250561309. The reversal of 1320250561299 is 9921650520231.

1320250561299 is a `hidden beast` number, since 1 + 3 + 2 + 0 + 25 + 0 + 5 + 612 + 9 + 9 = 666.

It is not a de Polignac number, because 1320250561299 - 2¹⁶ = 1320250495763 is a prime.

It is a super-2 number, since 2×1320250561299² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320250565299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24449084442 + ... + 24449084495.

It is an arithmetic number, because the mean of its divisors is an integer number (244490844690).

Almost surely, 2^{1320250561299} is an apocalyptic number.

1320250561299 is a deficient number, since it is larger than the sum of its proper divisors (635676196221).

1320250561299 is an equidigital number, since it uses as much as digits as its factorization.

1320250561299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48898168946 (or 48898168940 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 1320250561299 in words is "one trillion, three hundred twenty billion, two hundred fifty million, five hundred sixty-one thousand, two hundred ninety-nine".