123402297 has 4 divisors (see below), whose sum is σ = 164536400. Its totient is φ = 82268196.

The previous prime is 123402277. The next prime is 123402299. The reversal of 123402297 is 792204321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 792204321 = 3 ⋅264068107.

It is not a de Polignac number, because 123402297 - 2⁶ = 123402233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123402299) 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, 20567047 + ... + 20567052.

It is an arithmetic number, because the mean of its divisors is an integer number (41134100).

Almost surely, 2^123402297 is an apocalyptic number.

It is an amenable number.

123402297 is a deficient number, since it is larger than the sum of its proper divisors (41134103).

123402297 is an equidigital number, since it uses as much as digits as its factorization.

123402297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41134102.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 123402297 is about 11108.6586499001. The cubic root of 123402297 is about 497.8605882242.

The spelling of 123402297 in words is "one hundred twenty-three million, four hundred two thousand, two hundred ninety-seven".