11811582892031 has 16 divisors (see below), whose sum is σ = 12872276857440. Its totient is φ = 10773333442560.

The previous prime is 11811582892009. The next prime is 11811582892061. The reversal of 11811582892031 is 13029828511811.

It is a happy number.

It is not a de Polignac number, because 11811582892031 - 2²⁶ = 11811515783167 is a prime.

It is a super-2 number, since 2×11811582892031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11811582892061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14486786 + ... + 15280383.

It is an arithmetic number, because the mean of its divisors is an integer number (804517303590).

Almost surely, 2^{11811582892031} is an apocalyptic number.

11811582892031 is a deficient number, since it is larger than the sum of its proper divisors (1060693965409).

11811582892031 is a wasteful number, since it uses less digits than its factorization.

11811582892031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29767546.

The product of its (nonzero) digits is 276480, while the sum is 50.

The spelling of 11811582892031 in words is "eleven trillion, eight hundred eleven billion, five hundred eighty-two million, eight hundred ninety-two thousand, thirty-one".