123102491 has 8 divisors (see below), whose sum is σ = 130454064. Its totient is φ = 115763200.

The previous prime is 123102481. The next prime is 123102493. The reversal of 123102491 is 194201321.

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

It is not a de Polignac number, because 123102491 - 2¹⁴ = 123086107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123102493) 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, 24956 + ... + 29478.

It is an arithmetic number, because the mean of its divisors is an integer number (16306758).

Almost surely, 2^123102491 is an apocalyptic number.

123102491 is a deficient number, since it is larger than the sum of its proper divisors (7351573).

123102491 is a wasteful number, since it uses less digits than its factorization.

123102491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6141.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 123102491 is about 11095.1561953854. The cubic root of 123102491 is about 497.4570770103.

The spelling of 123102491 in words is "one hundred twenty-three million, one hundred two thousand, four hundred ninety-one".