8231021963 has 2 divisors, whose sum is σ = 8231021964. Its totient is φ = 8231021962.

The previous prime is 8231021951. The next prime is 8231021993. The reversal of 8231021963 is 3691201328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8231021963 - 2⁶ = 8231021899 is a prime.

It is not a weakly prime, because it can be changed into another prime (8231021923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4115510981 + 4115510982.

It is an arithmetic number, because the mean of its divisors is an integer number (4115510982).

Almost surely, 2^8231021963 is an apocalyptic number.

8231021963 is a deficient number, since it is larger than the sum of its proper divisors (1).

8231021963 is an equidigital number, since it uses as much as digits as its factorization.

8231021963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 8231021963 is about 90724.9798181295. The cubic root of 8231021963 is about 2019.0694307824.

The spelling of 8231021963 in words is "eight billion, two hundred thirty-one million, twenty-one thousand, nine hundred sixty-three".