123202312133 has 4 divisors (see below), whose sum is σ = 123219547968. Its totient is φ = 123185076300.

The previous prime is 123202312117. The next prime is 123202312147. The reversal of 123202312133 is 331213202321.

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 123202312133 - 2⁴ = 123202312117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123202312099 and 123202312108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123202312153) 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, 8607191 + ... + 8621492.

It is an arithmetic number, because the mean of its divisors is an integer number (30804886992).

Almost surely, 2^123202312133 is an apocalyptic number.

It is an amenable number.

123202312133 is a deficient number, since it is larger than the sum of its proper divisors (17235835).

123202312133 is an equidigital number, since it uses as much as digits as its factorization.

123202312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17235834.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123202312133 its reverse (331213202321), we get a palindrome (454415514454).

The spelling of 123202312133 in words is "one hundred twenty-three billion, two hundred two million, three hundred twelve thousand, one hundred thirty-three".