2121011330927 has 2 divisors, whose sum is σ = 2121011330928. Its totient is φ = 2121011330926.

The previous prime is 2121011330891. The next prime is 2121011330929. The reversal of 2121011330927 is 7290331101212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121011330927 - 2⁸ = 2121011330671 is a prime.

Together with 2121011330929, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121011330893 and 2121011330902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121011330929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060505665463 + 1060505665464.

It is an arithmetic number, because the mean of its divisors is an integer number (1060505665464).

Almost surely, 2^{2121011330927} is an apocalyptic number.

2121011330927 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121011330927 is an equidigital number, since it uses as much as digits as its factorization.

2121011330927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 2121011330927 in words is "two trillion, one hundred twenty-one billion, eleven million, three hundred thirty thousand, nine hundred twenty-seven".