1232401099 has 4 divisors (see below), whose sum is σ = 1233063064. Its totient is φ = 1231739136.

The previous prime is 1232401097. The next prime is 1232401127. The reversal of 1232401099 is 9901042321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9901042321 = 44909 ⋅220469.

It is a cyclic number.

It is not a de Polignac number, because 1232401099 - 2¹ = 1232401097 is a prime.

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 1232401099.

It is not an unprimeable number, because it can be changed into a prime (1232401097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328182 + ... + 331915.

It is an arithmetic number, because the mean of its divisors is an integer number (308265766).

Almost surely, 2^1232401099 is an apocalyptic number.

1232401099 is a deficient number, since it is larger than the sum of its proper divisors (661965).

1232401099 is an equidigital number, since it uses as much as digits as its factorization.

1232401099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661964.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1232401099 is about 35105.5707687541. The cubic root of 1232401099 is about 1072.1380079966.

The spelling of 1232401099 in words is "one billion, two hundred thirty-two million, four hundred one thousand, ninety-nine".