123361253 has 4 divisors (see below), whose sum is σ = 123607008. Its totient is φ = 123115500.

The previous prime is 123361247. The next prime is 123361261. The reversal of 123361253 is 352163321.

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.

It is a cyclic number.

It is not a de Polignac number, because 123361253 - 2⁴ = 123361237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123361223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122123 + ... + 123128.

It is an arithmetic number, because the mean of its divisors is an integer number (30901752).

Almost surely, 2^123361253 is an apocalyptic number.

It is an amenable number.

123361253 is a deficient number, since it is larger than the sum of its proper divisors (245755).

123361253 is an equidigital number, since it uses as much as digits as its factorization.

123361253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245754.

The product of its digits is 3240, while the sum is 26.

The square root of 123361253 is about 11106.8111085045. The cubic root of 123361253 is about 497.8053854271.

The spelling of 123361253 in words is "one hundred twenty-three million, three hundred sixty-one thousand, two hundred fifty-three".