30233131 has 2 divisors, whose sum is σ = 30233132. Its totient is φ = 30233130.

The previous prime is 30233111. The next prime is 30233141. The reversal of 30233131 is 13133203.

It is a strong prime.

It is an emirp because it is prime and its reverse (13133203) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30233131 is a prime.

It is a super-2 number, since 2×30233131² = 1828084420126322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30233101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15116565 + 15116566.

It is an arithmetic number, because the mean of its divisors is an integer number (15116566).

Almost surely, 2^30233131 is an apocalyptic number.

30233131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30233131 is an equidigital number, since it uses as much as digits as its factorization.

30233131 is an odious number, because the sum of its binary digits is odd.

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

The square root of 30233131 is about 5498.4662406893. The cubic root of 30233131 is about 311.5260548790.

Adding to 30233131 its reverse (13133203), we get a palindrome (43366334).

It can be divided in two parts, 302 and 33131, that added together give a palindrome (33433).

The spelling of 30233131 in words is "thirty million, two hundred thirty-three thousand, one hundred thirty-one".