420300142091 has 2 divisors, whose sum is σ = 420300142092. Its totient is φ = 420300142090.

The previous prime is 420300142051. The next prime is 420300142099. The reversal of 420300142091 is 190241003024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420300142091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420300142091.

It is not a weakly prime, because it can be changed into another prime (420300142099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210150071045 + 210150071046.

It is an arithmetic number, because the mean of its divisors is an integer number (210150071046).

Almost surely, 2^420300142091 is an apocalyptic number.

420300142091 is a deficient number, since it is larger than the sum of its proper divisors (1).

420300142091 is an equidigital number, since it uses as much as digits as its factorization.

420300142091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 420300142091 in words is "four hundred twenty billion, three hundred million, one hundred forty-two thousand, ninety-one".