1320245551131 has 16 divisors (see below), whose sum is σ = 1895802881280. Its totient is φ = 812430652320.

The previous prime is 1320245551091. The next prime is 1320245551139. The reversal of 1320245551131 is 1311555420231.

It is not a de Polignac number, because 1320245551131 - 2¹⁷ = 1320245420059 is a prime.

It is a super-2 number, since 2×1320245551131² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320245551092 and 1320245551101.

It is not an unprimeable number, because it can be changed into a prime (1320245551139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 583210 + ... + 1726448.

It is an arithmetic number, because the mean of its divisors is an integer number (118487680080).

Almost surely, 2^{1320245551131} is an apocalyptic number.

1320245551131 is a deficient number, since it is larger than the sum of its proper divisors (575557330149).

1320245551131 is a wasteful number, since it uses less digits than its factorization.

1320245551131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172866.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 1320245551131 in words is "one trillion, three hundred twenty billion, two hundred forty-five million, five hundred fifty-one thousand, one hundred thirty-one".