1232423121 has 32 divisors (see below), whose sum is σ = 1764282240. Its totient is φ = 763693056.

The previous prime is 1232423117. The next prime is 1232423131. The reversal of 1232423121 is 1213242321.

It is not a de Polignac number, because 1232423121 - 2² = 1232423117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232423131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310270 + ... + 314216.

It is an arithmetic number, because the mean of its divisors is an integer number (55133820).

Almost surely, 2^1232423121 is an apocalyptic number.

It is an amenable number.

1232423121 is a deficient number, since it is larger than the sum of its proper divisors (531859119).

1232423121 is a wasteful number, since it uses less digits than its factorization.

1232423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113.

The product of its digits is 576, while the sum is 21.

The square root of 1232423121 is about 35105.8844212762. The cubic root of 1232423121 is about 1072.1443940351.

Adding to 1232423121 its reverse (1213242321), we get a palindrome (2445665442).

The spelling of 1232423121 in words is "one billion, two hundred thirty-two million, four hundred twenty-three thousand, one hundred twenty-one".