2130021203 has 4 divisors (see below), whose sum is σ = 2203470240. Its totient is φ = 2056572168.

The previous prime is 2130021197. The next prime is 2130021259. The reversal of 2130021203 is 3021200312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130021203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130021403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36724475 + ... + 36724532.

It is an arithmetic number, because the mean of its divisors is an integer number (550867560).

Almost surely, 2^2130021203 is an apocalyptic number.

2130021203 is a deficient number, since it is larger than the sum of its proper divisors (73449037).

2130021203 is an equidigital number, since it uses as much as digits as its factorization.

2130021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73449036.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2130021203 is about 46152.1527450237. The cubic root of 2130021203 is about 1286.6526205061.

Adding to 2130021203 its reverse (3021200312), we get a palindrome (5151221515).

The spelling of 2130021203 in words is "two billion, one hundred thirty million, twenty-one thousand, two hundred three".