2111210521311 has 8 divisors (see below), whose sum is σ = 2817141402240. Its totient is φ = 1406376660632.

The previous prime is 2111210521307. The next prime is 2111210521327. The reversal of 2111210521311 is 1131250121112.

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 2111210521311 - 2² = 2111210521307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111210523311) 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, 274250571 + ... + 274258268.

It is an arithmetic number, because the mean of its divisors is an integer number (352142675280).

Almost surely, 2^{2111210521311} is an apocalyptic number.

2111210521311 is a deficient number, since it is larger than the sum of its proper divisors (705930880929).

2111210521311 is a wasteful number, since it uses less digits than its factorization.

2111210521311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548510125.

The product of its (nonzero) digits is 120, while the sum is 21.

Adding to 2111210521311 its reverse (1131250121112), we get a palindrome (3242460642423).

The spelling of 2111210521311 in words is "two trillion, one hundred eleven billion, two hundred ten million, five hundred twenty-one thousand, three hundred eleven".