123323220202442 has 16 divisors (see below), whose sum is σ = 201452797050120. Its totient is φ = 56278876634112.

The previous prime is 123323220202433. The next prime is 123323220202463. The reversal of 123323220202442 is 244202022323321.

It can be written as a sum of positive squares in 4 ways, for example, as 63977905907161 + 59345314295281 = 7998619^2 + 7703591^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123323220202399 and 123323220202408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26647193063 + ... + 26647197690.

Almost surely, 2^{123323220202442} is an apocalyptic number.

123323220202442 is a deficient number, since it is larger than the sum of its proper divisors (78129576847678).

123323220202442 is a wasteful number, since it uses less digits than its factorization.

123323220202442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53294390857.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 123323220202442 its reverse (244202022323321), we get a palindrome (367525242525763).

The spelling of 123323220202442 in words is "one hundred twenty-three trillion, three hundred twenty-three billion, two hundred twenty million, two hundred two thousand, four hundred forty-two".