1232013399 has 4 divisors (see below), whose sum is σ = 1642684536. Its totient is φ = 821342264.

The previous prime is 1232013361. The next prime is 1232013403. The reversal of 1232013399 is 9933102321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1232013399 - 2¹⁶ = 1231947863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232013319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205335564 + ... + 205335569.

It is an arithmetic number, because the mean of its divisors is an integer number (410671134).

Almost surely, 2^1232013399 is an apocalyptic number.

1232013399 is a deficient number, since it is larger than the sum of its proper divisors (410671137).

1232013399 is an equidigital number, since it uses as much as digits as its factorization.

1232013399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410671136.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 1232013399 is about 35100.0484187700. The cubic root of 1232013399 is about 1072.0255685476.

The spelling of 1232013399 in words is "one billion, two hundred thirty-two million, thirteen thousand, three hundred ninety-nine".