130233421 has 2 divisors, whose sum is σ = 130233422. Its totient is φ = 130233420.

The previous prime is 130233407. The next prime is 130233431. The reversal of 130233421 is 124332031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130210921 + 22500 = 11411^2 + 150^2 .

It is an emirp because it is prime and its reverse (124332031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130233421 - 2⁹ = 130232909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130233431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65116710 + 65116711.

It is an arithmetic number, because the mean of its divisors is an integer number (65116711).

Almost surely, 2^130233421 is an apocalyptic number.

It is an amenable number.

130233421 is a deficient number, since it is larger than the sum of its proper divisors (1).

130233421 is an equidigital number, since it uses as much as digits as its factorization.

130233421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 130233421 is about 11411.9858482212. The cubic root of 130233421 is about 506.8827163687.

Adding to 130233421 its reverse (124332031), we get a palindrome (254565452).

The spelling of 130233421 in words is "one hundred thirty million, two hundred thirty-three thousand, four hundred twenty-one".