1232400271 has 4 divisors (see below), whose sum is σ = 1241266600. Its totient is φ = 1223533944.

The previous prime is 1232400259. The next prime is 1232400277. The reversal of 1232400271 is 1720042321.

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 1232400271 - 2¹⁵ = 1232367503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232400277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4432956 + ... + 4433233.

It is an arithmetic number, because the mean of its divisors is an integer number (310316650).

Almost surely, 2^1232400271 is an apocalyptic number.

1232400271 is a deficient number, since it is larger than the sum of its proper divisors (8866329).

1232400271 is an equidigital number, since it uses as much as digits as its factorization.

1232400271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8866328.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1232400271 is about 35105.5589757520. The cubic root of 1232400271 is about 1072.1377678880.

Adding to 1232400271 its reverse (1720042321), we get a palindrome (2952442592).

The spelling of 1232400271 in words is "one billion, two hundred thirty-two million, four hundred thousand, two hundred seventy-one".