2103021121 has 8 divisors (see below), whose sum is σ = 2191152384. Its totient is φ = 2016158160.

The previous prime is 2103021113. The next prime is 2103021127. The reversal of 2103021121 is 1211203012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2103021121 - 2³ = 2103021113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103021127) 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, 313690 + ... + 320323.

It is an arithmetic number, because the mean of its divisors is an integer number (273894048).

Almost surely, 2^2103021121 is an apocalyptic number.

It is an amenable number.

2103021121 is a deficient number, since it is larger than the sum of its proper divisors (88131263).

2103021121 is a wasteful number, since it uses less digits than its factorization.

2103021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634151.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2103021121 is about 45858.7082351869. The cubic root of 2103021121 is about 1281.1929635336.

Adding to 2103021121 its reverse (1211203012), we get a palindrome (3314224133).

The spelling of 2103021121 in words is "two billion, one hundred three million, twenty-one thousand, one hundred twenty-one".