1232403123 has 16 divisors (see below), whose sum is σ = 1884886016. Its totient is φ = 701628480.

The previous prime is 1232403113. The next prime is 1232403127. The reversal of 1232403123 is 3213042321.

It is not a de Polignac number, because 1232403123 - 2⁸ = 1232402867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1232403123.

It is not an unprimeable number, because it can be changed into a prime (1232403127) 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, 102586 + ... + 113967.

It is an arithmetic number, because the mean of its divisors is an integer number (117805376).

Almost surely, 2^1232403123 is an apocalyptic number.

1232403123 is a deficient number, since it is larger than the sum of its proper divisors (652482893).

1232403123 is a wasteful number, since it uses less digits than its factorization.

1232403123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216834.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1232403123 is about 35105.5995960758. The cubic root of 1232403123 is about 1072.1385949284.

Adding to 1232403123 its reverse (3213042321), we get a palindrome (4445445444).

The spelling of 1232403123 in words is "one billion, two hundred thirty-two million, four hundred three thousand, one hundred twenty-three".