2111003121 has 32 divisors (see below), whose sum is σ = 2927788416. Its totient is φ = 1352000000.

The previous prime is 2111003117. The next prime is 2111003131. The reversal of 2111003121 is 1213001112.

It is a cyclic number.

It is not a de Polignac number, because 2111003121 - 2² = 2111003117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111003097 and 2111003106.

It is not an unprimeable number, because it can be changed into a prime (2111003131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3117835 + ... + 3118511.

It is an arithmetic number, because the mean of its divisors is an integer number (91493388).

Almost surely, 2^2111003121 is an apocalyptic number.

It is an amenable number.

2111003121 is a deficient number, since it is larger than the sum of its proper divisors (816785295).

2111003121 is a wasteful number, since it uses less digits than its factorization.

2111003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2111003121 is about 45945.6539946925. The cubic root of 2111003121 is about 1282.8118363650.

Adding to 2111003121 its reverse (1213001112), we get a palindrome (3324004233).

The spelling of 2111003121 in words is "two billion, one hundred eleven million, three thousand, one hundred twenty-one".