421101111253 has 2 divisors, whose sum is σ = 421101111254. Its totient is φ = 421101111252.

The previous prime is 421101111247. The next prime is 421101111259. The reversal of 421101111253 is 352111101124.

It is a balanced prime because it is at equal distance from previous prime (421101111247) and next prime (421101111259).

It can be written as a sum of positive squares in only one way, i.e., 340539939364 + 80561171889 = 583558^2 + 283833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421101111253 is a prime.

It is a super-2 number, since 2×421101111253² (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 (421101111259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210550555626 + 210550555627.

It is an arithmetic number, because the mean of its divisors is an integer number (210550555627).

Almost surely, 2^421101111253 is an apocalyptic number.

It is an amenable number.

421101111253 is a deficient number, since it is larger than the sum of its proper divisors (1).

421101111253 is an equidigital number, since it uses as much as digits as its factorization.

421101111253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 421101111253 its reverse (352111101124), we get a palindrome (773212212377).

The spelling of 421101111253 in words is "four hundred twenty-one billion, one hundred one million, one hundred eleven thousand, two hundred fifty-three".