21312200963 has 2 divisors, whose sum is σ = 21312200964. Its totient is φ = 21312200962.

The previous prime is 21312200951. The next prime is 21312200989. The reversal of 21312200963 is 36900221312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21312200963 - 2¹⁰ = 21312199939 is a prime.

It is not a weakly prime, because it can be changed into another prime (21312230963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10656100481 + 10656100482.

It is an arithmetic number, because the mean of its divisors is an integer number (10656100482).

Almost surely, 2^21312200963 is an apocalyptic number.

21312200963 is a deficient number, since it is larger than the sum of its proper divisors (1).

21312200963 is an equidigital number, since it uses as much as digits as its factorization.

21312200963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 21312200963 in words is "twenty-one billion, three hundred twelve million, two hundred thousand, nine hundred sixty-three".