11822720830 has 32 divisors (see below), whose sum is σ = 21509038080. Its totient is φ = 4678601760.

The previous prime is 11822720827. The next prime is 11822720837. The reversal of 11822720830 is 3802722811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11822720837) 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, 442965 + ... + 468895.

It is an arithmetic number, because the mean of its divisors is an integer number (672157440).

Almost surely, 2^11822720830 is an apocalyptic number.

11822720830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11822720830 is a deficient number, since it is larger than the sum of its proper divisors (9686317250).

11822720830 is a wasteful number, since it uses less digits than its factorization.

11822720830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26424.

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 11822720830 in words is "eleven billion, eight hundred twenty-two million, seven hundred twenty thousand, eight hundred thirty".