11331131121023 has 16 divisors (see below), whose sum is σ = 12980189343744. Its totient is φ = 9689660717760.

The previous prime is 11331131121007. The next prime is 11331131121029. The reversal of 11331131121023 is 32012113113311.

It is a cyclic number.

It is not a de Polignac number, because 11331131121023 - 2⁴ = 11331131121007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11331131121023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331131121029) 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, 20867738 + ... + 21403848.

It is an arithmetic number, because the mean of its divisors is an integer number (811261833984).

Almost surely, 2^{11331131121023} is an apocalyptic number.

11331131121023 is a deficient number, since it is larger than the sum of its proper divisors (1649058222721).

11331131121023 is an equidigital number, since it uses as much as digits as its factorization.

11331131121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543182.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 11331131121023 its reverse (32012113113311), we get a palindrome (43343244234334).

The spelling of 11331131121023 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, one hundred twenty-one thousand, twenty-three".