2131212300011 has 2 divisors, whose sum is σ = 2131212300012. Its totient is φ = 2131212300010.

The previous prime is 2131212299969. The next prime is 2131212300013. The reversal of 2131212300011 is 1100032121312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131212300011 is a prime.

It is a Sophie Germain prime.

Together with 2131212300013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2131212300013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065606150005 + 1065606150006.

It is an arithmetic number, because the mean of its divisors is an integer number (1065606150006).

Almost surely, 2^{2131212300011} is an apocalyptic number.

2131212300011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131212300011 is an equidigital number, since it uses as much as digits as its factorization.

2131212300011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2131212300011 its reverse (1100032121312), we get a palindrome (3231244421323).

The spelling of 2131212300011 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, three hundred thousand, eleven".