123013203251444 has 48 divisors (see below), whose sum is σ = 235648983882816. Its totient is φ = 55723380844800.

The previous prime is 123013203251431. The next prime is 123013203251479. The reversal of 123013203251444 is 444152302310321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49602104 + ... + 52023024.

It is an arithmetic number, because the mean of its divisors is an integer number (4909353830892).

Almost surely, 2^{123013203251444} is an apocalyptic number.

It is an amenable number.

123013203251444 is a deficient number, since it is larger than the sum of its proper divisors (112635780631372).

123013203251444 is a wasteful number, since it uses less digits than its factorization.

123013203251444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424896 (or 2424894 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 123013203251444 its reverse (444152302310321), we get a palindrome (567165505561765).

The spelling of 123013203251444 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, two hundred fifty-one thousand, four hundred forty-four".