213012121203 has 36 divisors (see below), whose sum is σ = 361462147488. Its totient is φ = 120516026400.

The previous prime is 213012121183. The next prime is 213012121213. The reversal of 213012121203 is 302121210312.

It is not a de Polignac number, because 213012121203 - 2¹⁴ = 213012104819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213012121213) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2346651 + ... + 2435732.

It is an arithmetic number, because the mean of its divisors is an integer number (10040615208).

Almost surely, 2^213012121203 is an apocalyptic number.

213012121203 is a deficient number, since it is larger than the sum of its proper divisors (148450026285).

213012121203 is a wasteful number, since it uses less digits than its factorization.

213012121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782504 (or 4782494 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 213012121203 its reverse (302121210312), we get a palindrome (515133331515).

The spelling of 213012121203 in words is "two hundred thirteen billion, twelve million, one hundred twenty-one thousand, two hundred three".