123023121 has 8 divisors (see below), whose sum is σ = 176648640. Its totient is φ = 75706512.

The previous prime is 123023107. The next prime is 123023137. The reversal of 123023121 is 121320321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123023121 - 2⁷ = 123022993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123023121.

It is not an unprimeable number, because it can be changed into a prime (123023141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1577181 + ... + 1577258.

It is an arithmetic number, because the mean of its divisors is an integer number (22081080).

Almost surely, 2^123023121 is an apocalyptic number.

It is an amenable number.

123023121 is a deficient number, since it is larger than the sum of its proper divisors (53625519).

123023121 is a wasteful number, since it uses less digits than its factorization.

123023121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154455.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123023121 is about 11091.5788326099. The cubic root of 123023121 is about 497.3501426543.

Adding to 123023121 its reverse (121320321), we get a palindrome (244343442).

The spelling of 123023121 in words is "one hundred twenty-three million, twenty-three thousand, one hundred twenty-one".