1123356788890 has 32 divisors (see below), whose sum is σ = 2313958218624. Its totient is φ = 384642095040.

The previous prime is 1123356788881. The next prime is 1123356788893. The reversal of 1123356788890 is 988876533211.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1123356788893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10546716 + ... + 10652695.

It is an arithmetic number, because the mean of its divisors is an integer number (72311194332).

Almost surely, 2^{1123356788890} is an apocalyptic number.

1123356788890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123356788890 is an abundant number, since it is smaller than the sum of its proper divisors (1190601429734).

1123356788890 is a wasteful number, since it uses less digits than its factorization.

1123356788890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21200182.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 1123356788890 in words is "one trillion, one hundred twenty-three billion, three hundred fifty-six million, seven hundred eighty-eight thousand, eight hundred ninety".