123576312273 has 4 divisors (see below), whose sum is σ = 164768416368. Its totient is φ = 82384208180.

The previous prime is 123576312269. The next prime is 123576312329. The reversal of 123576312273 is 372213675321.

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 123576312273 - 2² = 123576312269 is a prime.

It is a super-2 number, since 2×123576312273² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123576317273) 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, 20596052043 + ... + 20596052048.

It is an arithmetic number, because the mean of its divisors is an integer number (41192104092).

Almost surely, 2^123576312273 is an apocalyptic number.

It is an amenable number.

123576312273 is a deficient number, since it is larger than the sum of its proper divisors (41192104095).

123576312273 is an equidigital number, since it uses as much as digits as its factorization.

123576312273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41192104094.

The product of its digits is 317520, while the sum is 42.

Adding to 123576312273 its reverse (372213675321), we get a palindrome (495789987594).

The spelling of 123576312273 in words is "one hundred twenty-three billion, five hundred seventy-six million, three hundred twelve thousand, two hundred seventy-three".