1290731272183 has 4 divisors (see below), whose sum is σ = 1290778411720. Its totient is φ = 1290684132648.

The previous prime is 1290731272141. The next prime is 1290731272211. The reversal of 1290731272183 is 3812721370921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1290731272183 is a prime.

It is a super-2 number, since 2×1290731272183² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290731270183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23528673 + ... + 23583466.

It is an arithmetic number, because the mean of its divisors is an integer number (322694602930).

Almost surely, 2^{1290731272183} is an apocalyptic number.

1290731272183 is a deficient number, since it is larger than the sum of its proper divisors (47139537).

1290731272183 is an equidigital number, since it uses as much as digits as its factorization.

1290731272183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47139536.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 1290731272183 in words is "one trillion, two hundred ninety billion, seven hundred thirty-one million, two hundred seventy-two thousand, one hundred eighty-three".