213801906101111 has 8 divisors (see below), whose sum is σ = 220705700293248. Its totient is φ = 206898546816000.

The previous prime is 213801906101107. The next prime is 213801906101123. The reversal of 213801906101111 is 111101609108312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213801906101111 - 2² = 213801906101107 is a prime.

It is a super-2 number, since 2×213801906101111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213801906101101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107727530 + ... + 109694231.

It is an arithmetic number, because the mean of its divisors is an integer number (27588212536656).

Almost surely, 2^{213801906101111} is an apocalyptic number.

213801906101111 is a deficient number, since it is larger than the sum of its proper divisors (6903794192137).

213801906101111 is a wasteful number, since it uses less digits than its factorization.

213801906101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217453513.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 213801906101111 in words is "two hundred thirteen trillion, eight hundred one billion, nine hundred six million, one hundred one thousand, one hundred eleven".