1312262884881 has 24 divisors (see below), whose sum is σ = 2055983442240. Its totient is φ = 801736694496.

The previous prime is 1312262884873. The next prime is 1312262884901. The reversal of 1312262884881 is 1884882622131.

1312262884881 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 2 + 628 + 8 + 4 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 1312262884881 - 2³ = 1312262884873 is a prime.

It is a super-2 number, since 2×1312262884881² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1312262884081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40328781 + ... + 40361306.

It is an arithmetic number, because the mean of its divisors is an integer number (85665976760).

Almost surely, 2^{1312262884881} is an apocalyptic number.

It is an amenable number.

1312262884881 is a deficient number, since it is larger than the sum of its proper divisors (743720557359).

1312262884881 is a wasteful number, since it uses less digits than its factorization.

1312262884881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80690245 (or 80690242 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 54.

The spelling of 1312262884881 in words is "one trillion, three hundred twelve billion, two hundred sixty-two million, eight hundred eighty-four thousand, eight hundred eighty-one".