211303230999 has 16 divisors (see below), whose sum is σ = 322473016320. Its totient is φ = 120562025760.

The previous prime is 211303230979. The next prime is 211303231001. The reversal of 211303230999 is 999032303112.

It is a happy number.

It is not a de Polignac number, because 211303230999 - 2¹² = 211303226903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211303230999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211303230949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7597359 + ... + 7625120.

It is an arithmetic number, because the mean of its divisors is an integer number (20154563520).

Almost surely, 2^211303230999 is an apocalyptic number.

211303230999 is a deficient number, since it is larger than the sum of its proper divisors (111169785321).

211303230999 is a wasteful number, since it uses less digits than its factorization.

211303230999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15223150.

The product of its (nonzero) digits is 78732, while the sum is 42.

The spelling of 211303230999 in words is "two hundred eleven billion, three hundred three million, two hundred thirty thousand, nine hundred ninety-nine".