421114243234253 has 2 divisors, whose sum is σ = 421114243234254. Its totient is φ = 421114243234252.

The previous prime is 421114243234229. The next prime is 421114243234297. The reversal of 421114243234253 is 352432342411124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348094022369284 + 73020220864969 = 18657278^2 + 8545187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421114243234253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421114243234253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421114243234213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210557121617126 + 210557121617127.

It is an arithmetic number, because the mean of its divisors is an integer number (210557121617127).

Almost surely, 2^{421114243234253} is an apocalyptic number.

It is an amenable number.

421114243234253 is a deficient number, since it is larger than the sum of its proper divisors (1).

421114243234253 is an equidigital number, since it uses as much as digits as its factorization.

421114243234253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 41.

Adding to 421114243234253 its reverse (352432342411124), we get a palindrome (773546585645377).

The spelling of 421114243234253 in words is "four hundred twenty-one trillion, one hundred fourteen billion, two hundred forty-three million, two hundred thirty-four thousand, two hundred fifty-three".