421155105111407 has 2 divisors, whose sum is σ = 421155105111408. Its totient is φ = 421155105111406.

The previous prime is 421155105111373. The next prime is 421155105111451. The reversal of 421155105111407 is 704111501551124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421155105111407 - 2³² = 421150810144111 is a prime.

It is a super-2 number, since 2×421155105111407² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421155105114407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210577552555703 + 210577552555704.

It is an arithmetic number, because the mean of its divisors is an integer number (210577552555704).

Almost surely, 2^{421155105111407} is an apocalyptic number.

421155105111407 is a deficient number, since it is larger than the sum of its proper divisors (1).

421155105111407 is an equidigital number, since it uses as much as digits as its factorization.

421155105111407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 38.

The spelling of 421155105111407 in words is "four hundred twenty-one trillion, one hundred fifty-five billion, one hundred five million, one hundred eleven thousand, four hundred seven".