232121413 has 4 divisors (see below), whose sum is σ = 234290880. Its totient is φ = 229951948.

The previous prime is 232121401. The next prime is 232121431. The reversal of 232121413 is 314121232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232121413 - 2¹³ = 232113221 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 (232121443) 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, 1084573 + ... + 1084786.

It is an arithmetic number, because the mean of its divisors is an integer number (58572720).

Almost surely, 2^232121413 is an apocalyptic number.

It is an amenable number.

232121413 is a deficient number, since it is larger than the sum of its proper divisors (2169467).

232121413 is a wasteful number, since it uses less digits than its factorization.

232121413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169466.

The product of its digits is 288, while the sum is 19.

The square root of 232121413 is about 15235.5312674025. The cubic root of 232121413 is about 614.5705358701.

Adding to 232121413 its reverse (314121232), we get a palindrome (546242645).

The spelling of 232121413 in words is "two hundred thirty-two million, one hundred twenty-one thousand, four hundred thirteen".