842265447031 has 2 divisors, whose sum is σ = 842265447032. Its totient is φ = 842265447030.

The previous prime is 842265447029. The next prime is 842265447041. The reversal of 842265447031 is 130744562248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 842265447031 - 2¹ = 842265447029 is a prime.

It is a super-2 number, since 2×842265447031² (a number of 25 digits) contains 22 as substring.

Together with 842265447029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842265447041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421132723515 + 421132723516.

It is an arithmetic number, because the mean of its divisors is an integer number (421132723516).

Almost surely, 2^842265447031 is an apocalyptic number.

842265447031 is a deficient number, since it is larger than the sum of its proper divisors (1).

842265447031 is an equidigital number, since it uses as much as digits as its factorization.

842265447031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 842265447031 in words is "eight hundred forty-two billion, two hundred sixty-five million, four hundred forty-seven thousand, thirty-one".