213112121320203 has 16 divisors (see below), whose sum is σ = 324885149638656. Its totient is φ = 121724778965760.

The previous prime is 213112121320199. The next prime is 213112121320213. The reversal of 213112121320203 is 302023121211312.

It is not a de Polignac number, because 213112121320203 - 2² = 213112121320199 is a prime.

It is a super-2 number, since 2×213112121320203² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213112121320213) 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, 2232287563 + ... + 2232383028.

It is an arithmetic number, because the mean of its divisors is an integer number (20305321852416).

Almost surely, 2^{213112121320203} is an apocalyptic number.

213112121320203 is a deficient number, since it is larger than the sum of its proper divisors (111773028318453).

213112121320203 is a wasteful number, since it uses less digits than its factorization.

213112121320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464672874.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 213112121320203 its reverse (302023121211312), we get a palindrome (515135242531515).

The spelling of 213112121320203 in words is "two hundred thirteen trillion, one hundred twelve billion, one hundred twenty-one million, three hundred twenty thousand, two hundred three".