123354291 has 4 divisors (see below), whose sum is σ = 164472392. Its totient is φ = 82236192.

The previous prime is 123354241. The next prime is 123354293. The reversal of 123354291 is 192453321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192453321 = 3 ⋅64151107.

It is not a de Polignac number, because 123354291 - 2¹⁰ = 123353267 is a prime.

It is a super-2 number, since 2×123354291² = 30432562216225362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123354293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20559046 + ... + 20559051.

It is an arithmetic number, because the mean of its divisors is an integer number (41118098).

Almost surely, 2^123354291 is an apocalyptic number.

123354291 is a deficient number, since it is larger than the sum of its proper divisors (41118101).

123354291 is an equidigital number, since it uses as much as digits as its factorization.

123354291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41118100.

The product of its digits is 6480, while the sum is 30.

The square root of 123354291 is about 11106.4976927923. The cubic root of 123354291 is about 497.7960205571.

The spelling of 123354291 in words is "one hundred twenty-three million, three hundred fifty-four thousand, two hundred ninety-one".