123023011131 has 6 divisors (see below), whose sum is σ = 177699904980. Its totient is φ = 82015340748.

The previous prime is 123023011103. The next prime is 123023011159. The reversal of 123023011131 is 131110320321.

123023011131 is a `hidden beast` number, since 1 + 230 + 2 + 301 + 1 + 131 = 666.

It is an interprime number because it is at equal distance from previous prime (123023011103) and next prime (123023011159).

It is not a de Polignac number, because 123023011131 - 2¹⁸ = 123022748987 is a prime.

It is a super-2 number, since 2×123023011131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123023011231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6834611721 + ... + 6834611738.

It is an arithmetic number, because the mean of its divisors is an integer number (29616650830).

Almost surely, 2^123023011131 is an apocalyptic number.

123023011131 is a deficient number, since it is larger than the sum of its proper divisors (54676893849).

123023011131 is a wasteful number, since it uses less digits than its factorization.

123023011131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13669223465 (or 13669223462 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123023011131 its reverse (131110320321), we get a palindrome (254133331452).

The spelling of 123023011131 in words is "one hundred twenty-three billion, twenty-three million, eleven thousand, one hundred thirty-one".