413031444421 has 2 divisors, whose sum is σ = 413031444422. Its totient is φ = 413031444420.

The previous prime is 413031444391. The next prime is 413031444439. The reversal of 413031444421 is 124444130314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314316088321 + 98715356100 = 560639^2 + 314190^2 .

It is a cyclic number.

It is not a de Polignac number, because 413031444421 - 2³⁵ = 378671706053 is a prime.

It is a super-2 number, since 2×413031444421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (413031447421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206515722210 + 206515722211.

It is an arithmetic number, because the mean of its divisors is an integer number (206515722211).

Almost surely, 2^413031444421 is an apocalyptic number.

It is an amenable number.

413031444421 is a deficient number, since it is larger than the sum of its proper divisors (1).

413031444421 is an equidigital number, since it uses as much as digits as its factorization.

413031444421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 413031444421 its reverse (124444130314), we get a palindrome (537475574735).

The spelling of 413031444421 in words is "four hundred thirteen billion, thirty-one million, four hundred forty-four thousand, four hundred twenty-one".