1331250521331 has 16 divisors (see below), whose sum is σ = 1793356295328. Its totient is φ = 878330208000.

The previous prime is 1331250521323. The next prime is 1331250521401.

1331250521331 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1331250521331 - 2³ = 1331250521323 is a prime.

It is a super-2 number, since 2×1331250521331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331250520331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260380 + ... + 1652361.

It is an arithmetic number, because the mean of its divisors is an integer number (112084768458).

Almost surely, 2^{1331250521331} is an apocalyptic number.

1331250521331 is a deficient number, since it is larger than the sum of its proper divisors (462105773997).

1331250521331 is a wasteful number, since it uses less digits than its factorization.

1331250521331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915142.

The product of its (nonzero) digits is 8100, while the sum is 30.

It can be divided in two parts, 1331250 and 521331, that added together give a palindrome (1852581).

The spelling of 1331250521331 in words is "one trillion, three hundred thirty-one billion, two hundred fifty million, five hundred twenty-one thousand, three hundred thirty-one".