123006637131 has 16 divisors (see below), whose sum is σ = 187497053184. Its totient is φ = 70267618944.

The previous prime is 123006637099. The next prime is 123006637139. The reversal of 123006637131 is 131736600321.

It is not a de Polignac number, because 123006637131 - 2⁵ = 123006637099 is a prime.

It is a super-2 number, since 2×123006637131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123006637092 and 123006637101.

It is not an unprimeable number, because it can be changed into a prime (123006637139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842835 + ... + 977948.

It is an arithmetic number, because the mean of its divisors is an integer number (11718565824).

Almost surely, 2^123006637131 is an apocalyptic number.

123006637131 is a deficient number, since it is larger than the sum of its proper divisors (64490416053).

123006637131 is a wasteful number, since it uses less digits than its factorization.

123006637131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824010.

The product of its (nonzero) digits is 13608, while the sum is 33.

The spelling of 123006637131 in words is "one hundred twenty-three billion, six million, six hundred thirty-seven thousand, one hundred thirty-one".