11003123021000 has 96 divisors (see below), whose sum is σ = 28300760200440. Its totient is φ = 4001135600000.

The previous prime is 11003123020979. The next prime is 11003123021071. The reversal of 11003123021000 is 12032130011.

It can be written as a sum of positive squares in 4 ways, for example, as 1824125762404 + 9178997258596 = 1350602^2 + 3029686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45346451 + ... + 45588450.

Almost surely, 2^{11003123021000} is an apocalyptic number.

11003123021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11003123021000 is an abundant number, since it is smaller than the sum of its proper divisors (17297637179440).

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

11003123021000 is a wasteful number, since it uses less digits than its factorization.

11003123021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90934944 (or 90934919 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11003123021000 its reverse (12032130011), we get a palindrome (11015155151011).

The spelling of 11003123021000 in words is "eleven trillion, three billion, one hundred twenty-three million, twenty-one thousand".