232131401 has 4 divisors (see below), whose sum is σ = 232683204. Its totient is φ = 231579600.

The previous prime is 232131391. The next prime is 232131437. The reversal of 232131401 is 104131232.

232131401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22316176 + 209815225 = 4724^2 + 14485^2 .

It is a cyclic number.

It is not a de Polignac number, because 232131401 - 2⁶ = 232131337 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 232131401.

It is not an unprimeable number, because it can be changed into a prime (232131461) 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, 275270 + ... + 276111.

It is an arithmetic number, because the mean of its divisors is an integer number (58170801).

Almost surely, 2^232131401 is an apocalyptic number.

It is an amenable number.

232131401 is a deficient number, since it is larger than the sum of its proper divisors (551803).

232131401 is an equidigital number, since it uses as much as digits as its factorization.

232131401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551802.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 232131401 is about 15235.8590502800. The cubic root of 232131401 is about 614.5793505710.

Adding to 232131401 its reverse (104131232), we get a palindrome (336262633).

The spelling of 232131401 in words is "two hundred thirty-two million, one hundred thirty-one thousand, four hundred one".