211423121310 has 32 divisors (see below), whose sum is σ = 508412414880. Its totient is φ = 56268729728.

The previous prime is 211423121257. The next prime is 211423121317. The reversal of 211423121310 is 13121324112.

It is a super-2 number, since 2×211423121310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211423121317) 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, 6907557 + ... + 6938096.

It is an arithmetic number, because the mean of its divisors is an integer number (15887887965).

Almost surely, 2^211423121310 is an apocalyptic number.

211423121310 is an abundant number, since it is smaller than the sum of its proper divisors (296989293570).

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

211423121310 is a wasteful number, since it uses less digits than its factorization.

211423121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13846172.

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

Adding to 211423121310 its reverse (13121324112), we get a palindrome (224544445422).

The spelling of 211423121310 in words is "two hundred eleven billion, four hundred twenty-three million, one hundred twenty-one thousand, three hundred ten".