211423111302 has 64 divisors (see below), whose sum is σ = 482267459520. Its totient is φ = 61212893184.

The previous prime is 211423111267. The next prime is 211423111303. The reversal of 211423111302 is 203111324112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211423111303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6923724 + ... + 6954192.

It is an arithmetic number, because the mean of its divisors is an integer number (7535429055).

Almost surely, 2^211423111302 is an apocalyptic number.

211423111302 is an abundant number, since it is smaller than the sum of its proper divisors (270844348218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211423111302 is a wasteful number, since it uses less digits than its factorization.

211423111302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35737.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 211423111302 its reverse (203111324112), we get a palindrome (414534435414).

The spelling of 211423111302 in words is "two hundred eleven billion, four hundred twenty-three million, one hundred eleven thousand, three hundred two".