1000211121263 has 2 divisors, whose sum is σ = 1000211121264. Its totient is φ = 1000211121262.

The previous prime is 1000211121167. The next prime is 1000211121277. The reversal of 1000211121263 is 3621211120001.

1000211121263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000211121263 - 2²² = 1000206926959 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000211721263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500105560631 + 500105560632.

It is an arithmetic number, because the mean of its divisors is an integer number (500105560632).

Almost surely, 2^{1000211121263} is an apocalyptic number.

1000211121263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000211121263 is an equidigital number, since it uses as much as digits as its factorization.

1000211121263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1000211121263 its reverse (3621211120001), we get a palindrome (4621422241264).

The spelling of 1000211121263 in words is "one trillion, two hundred eleven million, one hundred twenty-one thousand, two hundred sixty-three".