2131213201 has 12 divisors (see below), whose sum is σ = 2320688880. Its totient is φ = 1956255600.

The previous prime is 2131213187. The next prime is 2131213207. The reversal of 2131213201 is 1023121312.

It is not a de Polignac number, because 2131213201 - 2¹⁵ = 2131180433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131213207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4975 + ... + 65476.

It is an arithmetic number, because the mean of its divisors is an integer number (193390740).

Almost surely, 2^2131213201 is an apocalyptic number.

It is an amenable number.

2131213201 is a deficient number, since it is larger than the sum of its proper divisors (189475679).

2131213201 is a wasteful number, since it uses less digits than its factorization.

2131213201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70656 (or 70643 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2131213201 is about 46165.0647243129. The cubic root of 2131213201 is about 1286.8925870292.

Adding to 2131213201 its reverse (1023121312), we get a palindrome (3154334513).

The spelling of 2131213201 in words is "two billion, one hundred thirty-one million, two hundred thirteen thousand, two hundred one".