123101131 has 16 divisors (see below), whose sum is σ = 136249344. Its totient is φ = 110726784.

The previous prime is 123101119. The next prime is 123101161. The reversal of 123101131 is 131101321.

It is a cyclic number.

It is not a de Polignac number, because 123101131 - 2⁹ = 123100619 is a prime.

It is a super-2 number, since 2×123101131² = 30307776906958322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123101161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32566 + ... + 36148.

It is an arithmetic number, because the mean of its divisors is an integer number (8515584).

Almost surely, 2^123101131 is an apocalyptic number.

123101131 is a deficient number, since it is larger than the sum of its proper divisors (13148213).

123101131 is a wasteful number, since it uses less digits than its factorization.

123101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 123101131 is about 11095.0949072101. The cubic root of 123101131 is about 497.4552450839.

Adding to 123101131 its reverse (131101321), we get a palindrome (254202452).

The spelling of 123101131 in words is "one hundred twenty-three million, one hundred one thousand, one hundred thirty-one".