11998103028 has 24 divisors (see below), whose sum is σ = 28257217632. Its totient is φ = 3961989984.

The previous prime is 11998103021. The next prime is 11998103069. The reversal of 11998103028 is 82030189911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11998103021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4670875 + ... + 4673442.

It is an arithmetic number, because the mean of its divisors is an integer number (1177384068).

Almost surely, 2^11998103028 is an apocalyptic number.

It is an amenable number.

11998103028 is an abundant number, since it is smaller than the sum of its proper divisors (16259114604).

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

11998103028 is a wasteful number, since it uses less digits than its factorization.

11998103028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9344431 (or 9344429 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The spelling of 11998103028 in words is "eleven billion, nine hundred ninety-eight million, one hundred three thousand, twenty-eight".