213711216401 has 4 divisors (see below), whose sum is σ = 213784836672. Its totient is φ = 213637596132.

The previous prime is 213711216373. The next prime is 213711216403. The reversal of 213711216401 is 104612117312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213711216401 - 2¹⁸ = 213710954257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213711216403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36805781 + ... + 36811586.

It is an arithmetic number, because the mean of its divisors is an integer number (53446209168).

Almost surely, 2^213711216401 is an apocalyptic number.

It is an amenable number.

213711216401 is a deficient number, since it is larger than the sum of its proper divisors (73620271).

213711216401 is an equidigital number, since it uses as much as digits as its factorization.

213711216401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73620270.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 213711216401 in words is "two hundred thirteen billion, seven hundred eleven million, two hundred sixteen thousand, four hundred one".