130031233 has 2 divisors, whose sum is σ = 130031234. Its totient is φ = 130031232.

The previous prime is 130031197. The next prime is 130031243. The reversal of 130031233 is 332130031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128890609 + 1140624 = 11353^2 + 1068^2 .

It is a cyclic number.

It is not a de Polignac number, because 130031233 - 2¹³ = 130023041 is a prime.

It is not a weakly prime, because it can be changed into another prime (130031243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65015616 + 65015617.

It is an arithmetic number, because the mean of its divisors is an integer number (65015617).

Almost surely, 2^130031233 is an apocalyptic number.

It is an amenable number.

130031233 is a deficient number, since it is larger than the sum of its proper divisors (1).

130031233 is an equidigital number, since it uses as much as digits as its factorization.

130031233 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 130031233 is about 11403.1238263907. The cubic root of 130031233 is about 506.6202679021.

Adding to 130031233 its reverse (332130031), we get a palindrome (462161264).

The spelling of 130031233 in words is "one hundred thirty million, thirty-one thousand, two hundred thirty-three".