4033130232421 has 2 divisors, whose sum is σ = 4033130232422. Its totient is φ = 4033130232420.

The previous prime is 4033130232359. The next prime is 4033130232449. The reversal of 4033130232421 is 1242320313304.

It is a happy number.

It is an a-pointer prime, because the next prime (4033130232449) can be obtained adding 4033130232421 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3598756967521 + 434373264900 = 1897039^2 + 659070^2 .

It is a cyclic number.

It is not a de Polignac number, because 4033130232421 - 2⁷ = 4033130232293 is a prime.

It is a super-2 number, since 2×4033130232421² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4033130232421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4033130232121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2016565116210 + 2016565116211.

It is an arithmetic number, because the mean of its divisors is an integer number (2016565116211).

Almost surely, 2^{4033130232421} is an apocalyptic number.

It is an amenable number.

4033130232421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4033130232421 is an equidigital number, since it uses as much as digits as its factorization.

4033130232421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 4033130232421 its reverse (1242320313304), we get a palindrome (5275450545725).

The spelling of 4033130232421 in words is "four trillion, thirty-three billion, one hundred thirty million, two hundred thirty-two thousand, four hundred twenty-one".