2121235053 has 16 divisors (see below), whose sum is σ = 3372896256. Its totient is φ = 1159432560.

The previous prime is 2121235033. The next prime is 2121235097. The reversal of 2121235053 is 3505321212.

It is a happy number.

It is not a de Polignac number, because 2121235053 - 2⁹ = 2121234541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121235003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2195413 + ... + 2196378.

It is an arithmetic number, because the mean of its divisors is an integer number (210806016).

Almost surely, 2^2121235053 is an apocalyptic number.

2121235053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2121235053 is a deficient number, since it is larger than the sum of its proper divisors (1251661203).

2121235053 is a wasteful number, since it uses less digits than its factorization.

2121235053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391824.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2121235053 is about 46056.8675986546. The cubic root of 2121235053 is about 1284.8810728354.

Adding to 2121235053 its reverse (3505321212), we get a palindrome (5626556265).

It can be divided in two parts, 21212 and 35053, that added together give a palindrome (56265).

The spelling of 2121235053 in words is "two billion, one hundred twenty-one million, two hundred thirty-five thousand, fifty-three".