11000021021047 has 2 divisors, whose sum is σ = 11000021021048. Its totient is φ = 11000021021046.

The previous prime is 11000021020987. The next prime is 11000021021053. The reversal of 11000021021047 is 74012012000011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11000021021047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11000021021347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500010510523 + 5500010510524.

It is an arithmetic number, because the mean of its divisors is an integer number (5500010510524).

Almost surely, 2^{11000021021047} is an apocalyptic number.

11000021021047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000021021047 is an equidigital number, since it uses as much as digits as its factorization.

11000021021047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 11000021021047 its reverse (74012012000011), we get a palindrome (85012033021058).

The spelling of 11000021021047 in words is "eleven trillion, twenty-one million, twenty-one thousand, forty-seven".