2131220203 has 8 divisors (see below), whose sum is σ = 2442583008. Its totient is φ = 1821583104.

The previous prime is 2131220131. The next prime is 2131220213. The reversal of 2131220203 is 3020221312.

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

It is a cyclic number.

It is not a de Polignac number, because 2131220203 - 2¹⁷ = 2131089131 is a prime.

It is a super-2 number, since 2×2131220203² = 9084199107350722418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131220213) 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, 428776 + ... + 433717.

It is an arithmetic number, because the mean of its divisors is an integer number (305322876).

Almost surely, 2^2131220203 is an apocalyptic number.

2131220203 is a deficient number, since it is larger than the sum of its proper divisors (311362805).

2131220203 is an equidigital number, since it uses as much as digits as its factorization.

2131220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862853.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2131220203 is about 46165.1405608171. The cubic root of 2131220203 is about 1286.8939963692.

Adding to 2131220203 its reverse (3020221312), we get a palindrome (5151441515).

The spelling of 2131220203 in words is "two billion, one hundred thirty-one million, two hundred twenty thousand, two hundred three".