213111312301 has 4 divisors (see below), whose sum is σ = 215180354272. Its totient is φ = 211042270332.

The previous prime is 213111312263. The next prime is 213111312317. The reversal of 213111312301 is 103213111312.

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 213111312301 - 2¹¹ = 213111310253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213111312361) 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, 1034520831 + ... + 1034521036.

It is an arithmetic number, because the mean of its divisors is an integer number (53795088568).

Almost surely, 2^213111312301 is an apocalyptic number.

It is an amenable number.

213111312301 is a deficient number, since it is larger than the sum of its proper divisors (2069041971).

213111312301 is a wasteful number, since it uses less digits than its factorization.

213111312301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069041970.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 213111312301 its reverse (103213111312), we get a palindrome (316324423613).

The spelling of 213111312301 in words is "two hundred thirteen billion, one hundred eleven million, three hundred twelve thousand, three hundred one".