123345651323 has 4 divisors (see below), whose sum is σ = 123371574480. Its totient is φ = 123319728168.

The previous prime is 123345651271. The next prime is 123345651343. The reversal of 123345651323 is 323156543321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323156543321 = 2203 ⋅146689307.

It is a cyclic number.

It is not a de Polignac number, because 123345651323 - 2¹⁰ = 123345650299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123345651343) 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, 12954440 + ... + 12963957.

It is an arithmetic number, because the mean of its divisors is an integer number (30842893620).

Almost surely, 2^123345651323 is an apocalyptic number.

123345651323 is a deficient number, since it is larger than the sum of its proper divisors (25923157).

123345651323 is an equidigital number, since it uses as much as digits as its factorization.

123345651323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25923156.

The product of its digits is 194400, while the sum is 38.

The spelling of 123345651323 in words is "one hundred twenty-three billion, three hundred forty-five million, six hundred fifty-one thousand, three hundred twenty-three".