421082697403 has 2 divisors, whose sum is σ = 421082697404. Its totient is φ = 421082697402.

The previous prime is 421082697359. The next prime is 421082697419. The reversal of 421082697403 is 304796280124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421082697403 is a prime.

It is not a weakly prime, because it can be changed into another prime (421082697443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210541348701 + 210541348702.

It is an arithmetic number, because the mean of its divisors is an integer number (210541348702).

Almost surely, 2^421082697403 is an apocalyptic number.

421082697403 is a deficient number, since it is larger than the sum of its proper divisors (1).

421082697403 is an equidigital number, since it uses as much as digits as its factorization.

421082697403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 421082697403 in words is "four hundred twenty-one billion, eighty-two million, six hundred ninety-seven thousand, four hundred three".