233031013 has 2 divisors, whose sum is σ = 233031014. Its totient is φ = 233031012.

The previous prime is 233030981. The next prime is 233031031. The reversal of 233031013 is 310130332.

Together with next prime (233031031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211935364 + 21095649 = 14558^2 + 4593^2 .

It is a cyclic number.

It is not a de Polignac number, because 233031013 - 2⁵ = 233030981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233031313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116515506 + 116515507.

It is an arithmetic number, because the mean of its divisors is an integer number (116515507).

Almost surely, 2^233031013 is an apocalyptic number.

It is an amenable number.

233031013 is a deficient number, since it is larger than the sum of its proper divisors (1).

233031013 is an equidigital number, since it uses as much as digits as its factorization.

233031013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 233031013 is about 15265.3533532637. The cubic root of 233031013 is about 615.3722495756.

Adding to 233031013 its reverse (310130332), we get a palindrome (543161345).

The spelling of 233031013 in words is "two hundred thirty-three million, thirty-one thousand, thirteen".