123044220203451 has 16 divisors (see below), whose sum is σ = 167612433084960. Its totient is φ = 80266678917120.

The previous prime is 123044220203441. The next prime is 123044220203507. The reversal of 123044220203451 is 154302022440321.

It is a happy number.

It is not a de Polignac number, because 123044220203451 - 2²⁶ = 123044153094587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123044220203441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1741863096 + ... + 1741933733.

It is an arithmetic number, because the mean of its divisors is an integer number (10475777067810).

Almost surely, 2^{123044220203451} is an apocalyptic number.

123044220203451 is a deficient number, since it is larger than the sum of its proper divisors (44568212881509).

123044220203451 is a wasteful number, since it uses less digits than its factorization.

123044220203451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483797086.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 123044220203451 its reverse (154302022440321), we get a palindrome (277346242643772).

The spelling of 123044220203451 in words is "one hundred twenty-three trillion, forty-four billion, two hundred twenty million, two hundred three thousand, four hundred fifty-one".