1232132421 has 16 divisors (see below), whose sum is σ = 1782728640. Its totient is φ = 752444160.

The previous prime is 1232132413. The next prime is 1232132441. The reversal of 1232132421 is 1242312321.

It is not a de Polignac number, because 1232132421 - 2³ = 1232132413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232132441) 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, 115476 + ... + 125693.

It is an arithmetic number, because the mean of its divisors is an integer number (111420540).

Almost surely, 2^1232132421 is an apocalyptic number.

It is an amenable number.

1232132421 is a deficient number, since it is larger than the sum of its proper divisors (550596219).

1232132421 is a wasteful number, since it uses less digits than its factorization.

1232132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241316.

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

The square root of 1232132421 is about 35101.7438455698. The cubic root of 1232132421 is about 1072.0600894164.

Adding to 1232132421 its reverse (1242312321), we get a palindrome (2474444742).

The spelling of 1232132421 in words is "one billion, two hundred thirty-two million, one hundred thirty-two thousand, four hundred twenty-one".