123103326453 has 4 divisors (see below), whose sum is σ = 164137768608. Its totient is φ = 82068884300.

The previous prime is 123103326449. The next prime is 123103326487. The reversal of 123103326453 is 354623301321.

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: 354623301321 = 3 ⋅118207767107.

It is a cyclic number.

It is not a de Polignac number, because 123103326453 - 2² = 123103326449 is a prime.

It is a super-2 number, since 2×123103326453² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123103326403) 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, 20517221073 + ... + 20517221078.

It is an arithmetic number, because the mean of its divisors is an integer number (41034442152).

Almost surely, 2^123103326453 is an apocalyptic number.

It is an amenable number.

123103326453 is a deficient number, since it is larger than the sum of its proper divisors (41034442155).

123103326453 is an equidigital number, since it uses as much as digits as its factorization.

123103326453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41034442154.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 123103326453 its reverse (354623301321), we get a palindrome (477726627774).

The spelling of 123103326453 in words is "one hundred twenty-three billion, one hundred three million, three hundred twenty-six thousand, four hundred fifty-three".