232321381 has 2 divisors, whose sum is σ = 232321382. Its totient is φ = 232321380.

The previous prime is 232321373. The next prime is 232321393. The reversal of 232321381 is 183123232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158533281 + 73788100 = 12591^2 + 8590^2 .

It is a cyclic number.

It is not a de Polignac number, because 232321381 - 2³ = 232321373 is a prime.

It is a super-2 number, since 2×232321381² = 107946448139494322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232321081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116160690 + 116160691.

It is an arithmetic number, because the mean of its divisors is an integer number (116160691).

Almost surely, 2^232321381 is an apocalyptic number.

It is an amenable number.

232321381 is a deficient number, since it is larger than the sum of its proper divisors (1).

232321381 is an equidigital number, since it uses as much as digits as its factorization.

232321381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 232321381 is about 15242.0924088525. The cubic root of 232321381 is about 614.7469653312.

The spelling of 232321381 in words is "two hundred thirty-two million, three hundred twenty-one thousand, three hundred eighty-one".