11123045471998 has 4 divisors (see below), whose sum is σ = 16684568208000. Its totient is φ = 5561522735998.

The previous prime is 11123045471963. The next prime is 11123045472013. The reversal of 11123045471998 is 89917454032111.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11123045471998² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780761367998 + ... + 2780761368001.

It is an arithmetic number, because the mean of its divisors is an integer number (4171142052000).

Almost surely, 2^{11123045471998} is an apocalyptic number.

11123045471998 is a deficient number, since it is larger than the sum of its proper divisors (5561522736002).

11123045471998 is an equidigital number, since it uses as much as digits as its factorization.

11123045471998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561522736001.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 11123045471998 in words is "eleven trillion, one hundred twenty-three billion, forty-five million, four hundred seventy-one thousand, nine hundred ninety-eight".