123320123142402 has 48 divisors (see below), whose sum is σ = 259635087449856. Its totient is φ = 39020210236800.

The previous prime is 123320123142389. The next prime is 123320123142413. The reversal of 123320123142402 is 204241321023321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123320123142402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164854674 + ... + 165601037.

It is an arithmetic number, because the mean of its divisors is an integer number (5409064321872).

Almost surely, 2^{123320123142402} is an apocalyptic number.

123320123142402 is an abundant number, since it is smaller than the sum of its proper divisors (136314964307454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123320123142402 is a wasteful number, since it uses less digits than its factorization.

123320123142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330455835 (or 330455794 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 123320123142402 its reverse (204241321023321), we get a palindrome (327561444165723).

The spelling of 123320123142402 in words is "one hundred twenty-three trillion, three hundred twenty billion, one hundred twenty-three million, one hundred forty-two thousand, four hundred two".