431010222421 has 2 divisors, whose sum is σ = 431010222422. Its totient is φ = 431010222420.

The previous prime is 431010222371. The next prime is 431010222439. The reversal of 431010222421 is 124222010134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357251267025 + 73758955396 = 597705^2 + 271586^2 .

It is a cyclic number.

It is not a de Polignac number, because 431010222421 - 2⁹ = 431010221909 is a prime.

It is a super-2 number, since 2×431010222421² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431010222392 and 431010222401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431010222121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215505111210 + 215505111211.

It is an arithmetic number, because the mean of its divisors is an integer number (215505111211).

Almost surely, 2^431010222421 is an apocalyptic number.

It is an amenable number.

431010222421 is a deficient number, since it is larger than the sum of its proper divisors (1).

431010222421 is an equidigital number, since it uses as much as digits as its factorization.

431010222421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 431010222421 its reverse (124222010134), we get a palindrome (555232232555).

The spelling of 431010222421 in words is "four hundred thirty-one billion, ten million, two hundred twenty-two thousand, four hundred twenty-one".