233970431 has 2 divisors, whose sum is σ = 233970432. Its totient is φ = 233970430.

The previous prime is 233970419. The next prime is 233970433. The reversal of 233970431 is 134079332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 233970431 - 2⁶ = 233970367 is a prime.

It is a super-2 number, since 2×233970431² = 109484325164651522, which contains 22 as substring.

Together with 233970433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233970433) 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 as a sum of consecutive naturals, namely, 116985215 + 116985216.

It is an arithmetic number, because the mean of its divisors is an integer number (116985216).

Almost surely, 2^233970431 is an apocalyptic number.

233970431 is a deficient number, since it is larger than the sum of its proper divisors (1).

233970431 is an equidigital number, since it uses as much as digits as its factorization.

233970431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 233970431 is about 15296.0920172441. The cubic root of 233970431 is about 616.1980576589.

The spelling of 233970431 in words is "two hundred thirty-three million, nine hundred seventy thousand, four hundred thirty-one".