11212321230 has 96 divisors (see below), whose sum is σ = 33476077440. Its totient is φ = 2575074240.

The previous prime is 11212321229. The next prime is 11212321231. The reversal of 11212321230 is 3212321211.

11212321230 is a `hidden beast` number, since 112 + 1 + 2 + 321 + 230 = 666.

It is an interprime number because it is at equal distance from previous prime (11212321229) and next prime (11212321231).

It is a super-2 number, since 2×11212321230² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212321231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 279232 + ... + 316851.

It is an arithmetic number, because the mean of its divisors is an integer number (348709140).

Almost surely, 2^11212321230 is an apocalyptic number.

11212321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212321230 is an abundant number, since it is smaller than the sum of its proper divisors (22263756210).

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

11212321230 is a wasteful number, since it uses less digits than its factorization.

11212321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596126 (or 596123 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11212321230 its reverse (3212321211), we get a palindrome (14424642441).

The spelling of 11212321230 in words is "eleven billion, two hundred twelve million, three hundred twenty-one thousand, two hundred thirty".