131123022031 has 12 divisors (see below), whose sum is σ = 141053041120. Its totient is φ = 121847731200.

The previous prime is 131123022007. The next prime is 131123022059. The reversal of 131123022031 is 130220321131.

It is not a de Polignac number, because 131123022031 - 2⁷ = 131123021903 is a prime.

It is a super-2 number, since 2×131123022031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123022001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2848770 + ... + 2894431.

Almost surely, 2^131123022031 is an apocalyptic number.

131123022031 is a deficient number, since it is larger than the sum of its proper divisors (9930019089).

131123022031 is an equidigital number, since it uses as much as digits as its factorization.

131123022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743314 (or 5743297 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131123022031 its reverse (130220321131), we get a palindrome (261343343162).

The spelling of 131123022031 in words is "one hundred thirty-one billion, one hundred twenty-three million, twenty-two thousand, thirty-one".