201211963 has 2 divisors, whose sum is σ = 201211964. Its totient is φ = 201211962.

The previous prime is 201211951. The next prime is 201211987. The reversal of 201211963 is 369112102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201211963 is a prime.

It is not a weakly prime, because it can be changed into another prime (201211943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605981 + 100605982.

It is an arithmetic number, because the mean of its divisors is an integer number (100605982).

Almost surely, 2^201211963 is an apocalyptic number.

201211963 is a deficient number, since it is larger than the sum of its proper divisors (1).

201211963 is an equidigital number, since it uses as much as digits as its factorization.

201211963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 201211963 is about 14184.9202676645. The cubic root of 201211963 is about 585.9824366598.

The spelling of 201211963 in words is "two hundred one million, two hundred eleven thousand, nine hundred sixty-three".