11003020919121 has 48 divisors (see below), whose sum is σ = 19071438337728. Its totient is φ = 5576443891200.

The previous prime is 11003020919119. The next prime is 11003020919129. The reversal of 11003020919121 is 12191902030011.

It is not a de Polignac number, because 11003020919121 - 2¹ = 11003020919119 is a prime.

It is a super-2 number, since 2×11003020919121² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11003020919129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82916500 + ... + 83049093.

It is an arithmetic number, because the mean of its divisors is an integer number (397321632036).

Almost surely, 2^{11003020919121} is an apocalyptic number.

11003020919121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11003020919121 is a deficient number, since it is larger than the sum of its proper divisors (8068417418607).

11003020919121 is a wasteful number, since it uses less digits than its factorization.

11003020919121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165965662 (or 165965655 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 30.

Adding to 11003020919121 its reverse (12191902030011), we get a palindrome (23194922949132).

The spelling of 11003020919121 in words is "eleven trillion, three billion, twenty million, nine hundred nineteen thousand, one hundred twenty-one".