1311423362161 has 32 divisors (see below), whose sum is σ = 1546922142720. Its totient is φ = 1098730526400.

The previous prime is 1311423362147. The next prime is 1311423362177. The reversal of 1311423362161 is 1612633241131.

It is a cyclic number.

It is not a de Polignac number, because 1311423362161 - 2⁷ = 1311423362033 is a prime.

It is a super-2 number, since 2×1311423362161² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311423362111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55719966 + ... + 55743496.

It is an arithmetic number, because the mean of its divisors is an integer number (48341316960).

Almost surely, 2^{1311423362161} is an apocalyptic number.

1311423362161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1311423362161 is a deficient number, since it is larger than the sum of its proper divisors (235498780559).

1311423362161 is a wasteful number, since it uses less digits than its factorization.

1311423362161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30805.

The product of its digits is 15552, while the sum is 34.

The spelling of 1311423362161 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred sixty-two thousand, one hundred sixty-one".