421434131233 has 2 divisors, whose sum is σ = 421434131234. Its totient is φ = 421434131232.

The previous prime is 421434131227. The next prime is 421434131249. The reversal of 421434131233 is 332131434124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225731412544 + 195702718689 = 475112^2 + 442383^2 .

It is a cyclic number.

It is not a de Polignac number, because 421434131233 - 2⁹ = 421434130721 is a prime.

It is a super-2 number, since 2×421434131233² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421434131195 and 421434131204.

It is not a weakly prime, because it can be changed into another prime (421434131203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210717065616 + 210717065617.

It is an arithmetic number, because the mean of its divisors is an integer number (210717065617).

Almost surely, 2^421434131233 is an apocalyptic number.

It is an amenable number.

421434131233 is a deficient number, since it is larger than the sum of its proper divisors (1).

421434131233 is an equidigital number, since it uses as much as digits as its factorization.

421434131233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 31.

Adding to 421434131233 its reverse (332131434124), we get a palindrome (753565565357).

The spelling of 421434131233 in words is "four hundred twenty-one billion, four hundred thirty-four million, one hundred thirty-one thousand, two hundred thirty-three".