2121011230867 has 2 divisors, whose sum is σ = 2121011230868. Its totient is φ = 2121011230866.

The previous prime is 2121011230843. The next prime is 2121011230927. The reversal of 2121011230867 is 7680321101212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121011230867 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121011230837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060505615433 + 1060505615434.

It is an arithmetic number, because the mean of its divisors is an integer number (1060505615434).

Almost surely, 2^{2121011230867} is an apocalyptic number.

2121011230867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121011230867 is an equidigital number, since it uses as much as digits as its factorization.

2121011230867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 2121011230867 in words is "two trillion, one hundred twenty-one billion, eleven million, two hundred thirty thousand, eight hundred sixty-seven".