123223205533153 has 4 divisors (see below), whose sum is σ = 134425315127088. Its totient is φ = 112021095939220.

The previous prime is 123223205533019. The next prime is 123223205533187. The reversal of 123223205533153 is 351335502322321.

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 123223205533153 - 2²⁵ = 123223171978721 is a prime.

It is a super-2 number, since 2×123223205533153² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123223205543153) 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, 5601054796951 + ... + 5601054796972.

It is an arithmetic number, because the mean of its divisors is an integer number (33606328781772).

Almost surely, 2^{123223205533153} is an apocalyptic number.

It is an amenable number.

123223205533153 is a deficient number, since it is larger than the sum of its proper divisors (11202109593935).

123223205533153 is a wasteful number, since it uses less digits than its factorization.

123223205533153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11202109593934.

The product of its (nonzero) digits is 486000, while the sum is 40.

Adding to 123223205533153 its reverse (351335502322321), we get a palindrome (474558707855474).

The spelling of 123223205533153 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, two hundred five million, five hundred thirty-three thousand, one hundred fifty-three".