420829898911091 has 2 divisors, whose sum is σ = 420829898911092. Its totient is φ = 420829898911090.

The previous prime is 420829898911073. The next prime is 420829898911181. The reversal of 420829898911091 is 190119898928024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420829898911091 - 2²² = 420829894716787 is a prime.

It is not a weakly prime, because it can be changed into another prime (420829898911001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210414949455545 + 210414949455546.

It is an arithmetic number, because the mean of its divisors is an integer number (210414949455546).

Almost surely, 2^{420829898911091} is an apocalyptic number.

420829898911091 is a deficient number, since it is larger than the sum of its proper divisors (1).

420829898911091 is an equidigital number, since it uses as much as digits as its factorization.

420829898911091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53747712, while the sum is 71.

The spelling of 420829898911091 in words is "four hundred twenty trillion, eight hundred twenty-nine billion, eight hundred ninety-eight million, nine hundred eleven thousand, ninety-one".