123371357 has 4 divisors (see below), whose sum is σ = 126705756. Its totient is φ = 120036960.

The previous prime is 123371309. The next prime is 123371359. The reversal of 123371357 is 753173321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115648516 + 7722841 = 10754^2 + 2779^2 .

It is a cyclic number.

It is not a de Polignac number, because 123371357 - 2¹⁰ = 123370333 is a prime.

It is a super-3 number, since 3×123371357³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123371359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667144 + ... + 1667217.

It is an arithmetic number, because the mean of its divisors is an integer number (31676439).

Almost surely, 2^123371357 is an apocalyptic number.

It is an amenable number.

123371357 is a deficient number, since it is larger than the sum of its proper divisors (3334399).

123371357 is an equidigital number, since it uses as much as digits as its factorization.

123371357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334398.

The product of its digits is 13230, while the sum is 32.

The square root of 123371357 is about 11107.2659552205. The cubic root of 123371357 is about 497.8189761026.

The spelling of 123371357 in words is "one hundred twenty-three million, three hundred seventy-one thousand, three hundred fifty-seven".