11212321430 has 16 divisors (see below), whose sum is σ = 20425338864. Its totient is φ = 4430892960.

The previous prime is 11212321411. The next prime is 11212321447. The reversal of 11212321430 is 3412321211.

11212321430 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6753581 + ... + 6755240.

It is an arithmetic number, because the mean of its divisors is an integer number (1276583679).

Almost surely, 2^11212321430 is an apocalyptic number.

11212321430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212321430 is a deficient number, since it is larger than the sum of its proper divisors (9213017434).

11212321430 is a wasteful number, since it uses less digits than its factorization.

11212321430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13508911.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11212321430 its reverse (3412321211), we get a palindrome (14624642641).

The spelling of 11212321430 in words is "eleven billion, two hundred twelve million, three hundred twenty-one thousand, four hundred thirty".