421313953451 has 2 divisors, whose sum is σ = 421313953452. Its totient is φ = 421313953450.

The previous prime is 421313953433. The next prime is 421313953453. The reversal of 421313953451 is 154359313124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421313953451 - 2¹⁴ = 421313937067 is a prime.

It is a super-2 number, since 2×421313953451² (a number of 24 digits) contains 22 as substring.

Together with 421313953453, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 421313953399 and 421313953408.

It is not a weakly prime, because it can be changed into another prime (421313953453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210656976725 + 210656976726.

It is an arithmetic number, because the mean of its divisors is an integer number (210656976726).

Almost surely, 2^421313953451 is an apocalyptic number.

421313953451 is a deficient number, since it is larger than the sum of its proper divisors (1).

421313953451 is an equidigital number, since it uses as much as digits as its factorization.

421313953451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 41.

The spelling of 421313953451 in words is "four hundred twenty-one billion, three hundred thirteen million, nine hundred fifty-three thousand, four hundred fifty-one".