2131212230303 has 24 divisors (see below), whose sum is σ = 2377366432896. Its totient is φ = 1899162115200.

The previous prime is 2131212230249. The next prime is 2131212230309. The reversal of 2131212230303 is 3030322121312.

It is a de Polignac number, because none of the positive numbers 2^k-2131212230303 is a prime.

It is a super-2 number, since 2×2131212230303² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131212230309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136774973 + ... + 136790553.

It is an arithmetic number, because the mean of its divisors is an integer number (99056934704).

Almost surely, 2^{2131212230303} is an apocalyptic number.

2131212230303 is a deficient number, since it is larger than the sum of its proper divisors (246154202593).

2131212230303 is a wasteful number, since it uses less digits than its factorization.

2131212230303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28163 (or 28134 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2131212230303 its reverse (3030322121312), we get a palindrome (5161534351615).

The spelling of 2131212230303 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, two hundred thirty thousand, three hundred three".