131123111023 has 8 divisors (see below), whose sum is σ = 135648640800. Its totient is φ = 126597850848.

The previous prime is 131123110997. The next prime is 131123111027. The reversal of 131123111023 is 320111321131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131123111023 - 2²⁹ = 130586240111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123111027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790613 + ... + 1862401.

It is an arithmetic number, because the mean of its divisors is an integer number (16956080100).

Almost surely, 2^131123111023 is an apocalyptic number.

131123111023 is a deficient number, since it is larger than the sum of its proper divisors (4525529777).

131123111023 is an equidigital number, since it uses as much as digits as its factorization.

131123111023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134801.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 131123111023 its reverse (320111321131), we get a palindrome (451234432154).

The spelling of 131123111023 in words is "one hundred thirty-one billion, one hundred twenty-three million, one hundred eleven thousand, twenty-three".