123162313 has 4 divisors (see below), whose sum is σ = 129644560. Its totient is φ = 116680068.

The previous prime is 123162283. The next prime is 123162341. The reversal of 123162313 is 313261321.

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: 313261321 = 43 ⋅7285147.

It is a cyclic number.

It is not a de Polignac number, because 123162313 - 2¹⁷ = 123031241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123162373) 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, 3241095 + ... + 3241132.

It is an arithmetic number, because the mean of its divisors is an integer number (32411140).

Almost surely, 2^123162313 is an apocalyptic number.

It is an amenable number.

123162313 is a deficient number, since it is larger than the sum of its proper divisors (6482247).

123162313 is an equidigital number, since it uses as much as digits as its factorization.

123162313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6482246.

The product of its digits is 648, while the sum is 22.

The square root of 123162313 is about 11097.8517290510. The cubic root of 123162313 is about 497.5376441806.

The spelling of 123162313 in words is "one hundred twenty-three million, one hundred sixty-two thousand, three hundred thirteen".