131045333004123 has 4 divisors (see below), whose sum is σ = 174727110672168. Its totient is φ = 87363555336080.

The previous prime is 131045333004119. The next prime is 131045333004143. The reversal of 131045333004123 is 321400333540131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131045333004123 - 2² = 131045333004119 is a prime.

It is a super-2 number, since 2×131045333004123² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131045333004143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21840888834018 + ... + 21840888834023.

It is an arithmetic number, because the mean of its divisors is an integer number (43681777668042).

Almost surely, 2^{131045333004123} is an apocalyptic number.

131045333004123 is a deficient number, since it is larger than the sum of its proper divisors (43681777668045).

131045333004123 is an equidigital number, since it uses as much as digits as its factorization.

131045333004123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43681777668044.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 131045333004123 its reverse (321400333540131), we get a palindrome (452445666544254).

The spelling of 131045333004123 in words is "one hundred thirty-one trillion, forty-five billion, three hundred thirty-three million, four thousand, one hundred twenty-three".