11101211991930 has 32 divisors (see below), whose sum is σ = 26643124125504. Its totient is φ = 2960299270656.

The previous prime is 11101211991929. The next prime is 11101211991937. The reversal of 11101211991930 is 3919911210111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11101211991937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2448597 + ... + 5310183.

It is an arithmetic number, because the mean of its divisors is an integer number (832597628922).

Almost surely, 2^{11101211991930} is an apocalyptic number.

11101211991930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11101211991930 is an abundant number, since it is smaller than the sum of its proper divisors (15541912133574).

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

11101211991930 is a wasteful number, since it uses less digits than its factorization.

11101211991930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990910.

The product of its (nonzero) digits is 4374, while the sum is 39.

The spelling of 11101211991930 in words is "eleven trillion, one hundred one billion, two hundred eleven million, nine hundred ninety-one thousand, nine hundred thirty".