2131212231203 has 16 divisors (see below), whose sum is σ = 2337585316704. Its totient is φ = 1926950511360.

The previous prime is 2131212231139. The next prime is 2131212231223. The reversal of 2131212231203 is 3021322121312.

It is a cyclic number.

It is not a de Polignac number, because 2131212231203 - 2⁶ = 2131212231139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131212231223) 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 15 ways as a sum of consecutive naturals, for example, 6019001 + ... + 6363237.

It is an arithmetic number, because the mean of its divisors is an integer number (146099082294).

Almost surely, 2^{2131212231203} is an apocalyptic number.

2131212231203 is a deficient number, since it is larger than the sum of its proper divisors (206373085501).

2131212231203 is a wasteful number, since it uses less digits than its factorization.

2131212231203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347302.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2131212231203 its reverse (3021322121312), we get a palindrome (5152534352515).

The spelling of 2131212231203 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, two hundred thirty-one thousand, two hundred three".