11123456790 has 32 divisors (see below), whose sum is σ = 26699072256. Its totient is φ = 2965946720.

The previous prime is 11123456759. The next prime is 11123456801. The reversal of 11123456790 is 9765432111.

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, 541039 + ... + 561221.

It is an arithmetic number, because the mean of its divisors is an integer number (834346008).

Almost surely, 2^11123456790 is an apocalyptic number.

11123456790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11123456790 is an abundant number, since it is smaller than the sum of its proper divisors (15575615466).

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

11123456790 is a wasteful number, since it uses less digits than its factorization.

11123456790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38564.

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 11123456790 in words is "eleven billion, one hundred twenty-three million, four hundred fifty-six thousand, seven hundred ninety".