124123881 has 16 divisors (see below), whose sum is σ = 189456768. Its totient is φ = 70809600.

The previous prime is 124123877. The next prime is 124123913. The reversal of 124123881 is 188321421.

It is not a de Polignac number, because 124123881 - 2² = 124123877 is a prime.

It is a super-2 number, since 2×124123881² = 30813475669004322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124123841) 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, 8851 + ... + 18071.

It is an arithmetic number, because the mean of its divisors is an integer number (11841048).

Almost surely, 2^124123881 is an apocalyptic number.

It is an amenable number.

124123881 is a deficient number, since it is larger than the sum of its proper divisors (65332887).

124123881 is an equidigital number, since it uses as much as digits as its factorization.

124123881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9872.

The product of its digits is 3072, while the sum is 30.

The square root of 124123881 is about 11141.0897581879. The cubic root of 124123881 is about 498.8291014670.

The spelling of 124123881 in words is "one hundred twenty-four million, one hundred twenty-three thousand, eight hundred eighty-one".