20020231963 has 2 divisors, whose sum is σ = 20020231964. Its totient is φ = 20020231962.

The previous prime is 20020231901. The next prime is 20020232021. The reversal of 20020231963 is 36913202002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020231963 - 2²⁵ = 19986677531 is a prime.

It is not a weakly prime, because it can be changed into another prime (20020232963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010115981 + 10010115982.

It is an arithmetic number, because the mean of its divisors is an integer number (10010115982).

Almost surely, 2^20020231963 is an apocalyptic number.

20020231963 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020231963 is an equidigital number, since it uses as much as digits as its factorization.

20020231963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 20020231963 its reverse (36913202002), we get a palindrome (56933433965).

The spelling of 20020231963 in words is "twenty billion, twenty million, two hundred thirty-one thousand, nine hundred sixty-three".