2121010032047 has 2 divisors, whose sum is σ = 2121010032048. Its totient is φ = 2121010032046.

The previous prime is 2121010032019. The next prime is 2121010032049. The reversal of 2121010032047 is 7402300101212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121010032047 is a prime.

Together with 2121010032049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121010032049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060505016023 + 1060505016024.

It is an arithmetic number, because the mean of its divisors is an integer number (1060505016024).

Almost surely, 2^{2121010032047} is an apocalyptic number.

2121010032047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121010032047 is an equidigital number, since it uses as much as digits as its factorization.

2121010032047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 2121010032047 its reverse (7402300101212), we get a palindrome (9523310133259).

The spelling of 2121010032047 in words is "two trillion, one hundred twenty-one billion, ten million, thirty-two thousand, forty-seven".