213101963 has 2 divisors, whose sum is σ = 213101964. Its totient is φ = 213101962.

The previous prime is 213101939. The next prime is 213101971. The reversal of 213101963 is 369101312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213101963 - 2¹² = 213097867 is a prime.

It is not a weakly prime, because it can be changed into another prime (213101983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106550981 + 106550982.

It is an arithmetic number, because the mean of its divisors is an integer number (106550982).

Almost surely, 2^213101963 is an apocalyptic number.

213101963 is a deficient number, since it is larger than the sum of its proper divisors (1).

213101963 is an equidigital number, since it uses as much as digits as its factorization.

213101963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 213101963 is about 14598.0122961998. The cubic root of 213101963 is about 597.3045413786.

The spelling of 213101963 in words is "two hundred thirteen million, one hundred one thousand, nine hundred sixty-three".