20000011963 has 2 divisors, whose sum is σ = 20000011964. Its totient is φ = 20000011962.

The previous prime is 20000011961. The next prime is 20000012029. The reversal of 20000011963 is 36911000002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20000011963 - 2¹ = 20000011961 is a prime.

It is a super-2 number, since 2×20000011963² (a number of 21 digits) contains 22 as substring.

Together with 20000011961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20000011961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000005981 + 10000005982.

It is an arithmetic number, because the mean of its divisors is an integer number (10000005982).

Almost surely, 2^20000011963 is an apocalyptic number.

20000011963 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000011963 is an equidigital number, since it uses as much as digits as its factorization.

20000011963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 20000011963 its reverse (36911000002), we get a palindrome (56911011965).

The spelling of 20000011963 in words is "twenty billion, eleven thousand, nine hundred sixty-three".