11111223456790 has 32 divisors (see below), whose sum is σ = 20788227180000. Its totient is φ = 4272267216384.

The previous prime is 11111223456769. The next prime is 11111223456803. The reversal of 11111223456790 is 9765432211111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180874915 + ... + 180936334.

It is an arithmetic number, because the mean of its divisors is an integer number (649632099375).

Almost surely, 2^{11111223456790} is an apocalyptic number.

11111223456790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111223456790 is a deficient number, since it is larger than the sum of its proper divisors (9677003723210).

11111223456790 is a wasteful number, since it uses less digits than its factorization.

11111223456790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361811376.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 11111223456790 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-three million, four hundred fifty-six thousand, seven hundred ninety".