11123445667890 has 64 divisors (see below), whose sum is σ = 26797922686080. Its totient is φ = 2954976215040.

The previous prime is 11123445667819. The next prime is 11123445667931. The reversal of 11123445667890 is 9876654432111.

It is a self number, because there is not a number n which added to its sum of digits gives 11123445667890.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8876722 + ... + 10052018.

It is an arithmetic number, because the mean of its divisors is an integer number (418717541970).

It is a 2-persistent number, because it is pandigital, and so is 2⋅11123445667890 = 22246891335780, but 3⋅11123445667890 = 33370337003670 is not.

Almost surely, 2^{11123445667890} is an apocalyptic number.

11123445667890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11123445667890 is an abundant number, since it is smaller than the sum of its proper divisors (15674477018190).

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

11123445667890 is a wasteful number, since it uses less digits than its factorization.

11123445667890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176507.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 11123445667890 in words is "eleven trillion, one hundred twenty-three billion, four hundred forty-five million, six hundred sixty-seven thousand, eight hundred ninety".