231133039 has 2 divisors, whose sum is σ = 231133040. Its totient is φ = 231133038.

The previous prime is 231133009. The next prime is 231133093. The reversal of 231133039 is 930331132.

Together with next prime (231133093) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231133039 - 2¹³ = 231124847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231133009) 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, 115566519 + 115566520.

It is an arithmetic number, because the mean of its divisors is an integer number (115566520).

Almost surely, 2^231133039 is an apocalyptic number.

231133039 is a deficient number, since it is larger than the sum of its proper divisors (1).

231133039 is an equidigital number, since it uses as much as digits as its factorization.

231133039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 231133039 is about 15203.0601853706. The cubic root of 231133039 is about 613.6970135233.

The spelling of 231133039 in words is "two hundred thirty-one million, one hundred thirty-three thousand, thirty-nine".