11101201845820 has 24 divisors (see below), whose sum is σ = 23313901013424. Its totient is φ = 4440218426496.

The previous prime is 11101201845779. The next prime is 11101201845829. The reversal of 11101201845820 is 2854810210111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101201845829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16047282 + ... + 16724761.

It is an arithmetic number, because the mean of its divisors is an integer number (971412542226).

Almost surely, 2^{11101201845820} is an apocalyptic number.

11101201845820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101201845820 is an abundant number, since it is smaller than the sum of its proper divisors (12212699167604).

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

11101201845820 is a wasteful number, since it uses less digits than its factorization.

11101201845820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32788989 (or 32788987 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 34.

The spelling of 11101201845820 in words is "eleven trillion, one hundred one billion, two hundred one million, eight hundred forty-five thousand, eight hundred twenty".