123202534342321 has 32 divisors (see below), whose sum is σ = 147008350089216. Its totient is φ = 100953323592000.

The previous prime is 123202534342243. The next prime is 123202534342469. The reversal of 123202534342321 is 123243435202321.

It is a cyclic number.

It is not a de Polignac number, because 123202534342321 - 2¹⁵ = 123202534309553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123202534342021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2116452906 + ... + 2116511116.

It is an arithmetic number, because the mean of its divisors is an integer number (4594010940288).

Almost surely, 2^{123202534342321} is an apocalyptic number.

It is an amenable number.

123202534342321 is a deficient number, since it is larger than the sum of its proper divisors (23805815746895).

123202534342321 is a wasteful number, since it uses less digits than its factorization.

123202534342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65493.

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 123202534342321 its reverse (123243435202321), we get a palindrome (246445969544642).

The spelling of 123202534342321 in words is "one hundred twenty-three trillion, two hundred two billion, five hundred thirty-four million, three hundred forty-two thousand, three hundred twenty-one".