211345251134231 has 4 divisors (see below), whose sum is σ = 211346985826392. Its totient is φ = 211343516442072.

The previous prime is 211345251134191. The next prime is 211345251134309. The reversal of 211345251134231 is 132431152543112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211345251134231 - 2⁶ = 211345251134167 is a prime.

It is a super-2 number, since 2×211345251134231² (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 (211345251134531) 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, 867163316 + ... + 867407001.

It is an arithmetic number, because the mean of its divisors is an integer number (52836746456598).

Almost surely, 2^{211345251134231} is an apocalyptic number.

211345251134231 is a deficient number, since it is larger than the sum of its proper divisors (1734692161).

211345251134231 is a wasteful number, since it uses less digits than its factorization.

211345251134231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734692160.

The product of its digits is 86400, while the sum is 38.

The spelling of 211345251134231 in words is "two hundred eleven trillion, three hundred forty-five billion, two hundred fifty-one million, one hundred thirty-four thousand, two hundred thirty-one".