21077003333 has 2 divisors, whose sum is σ = 21077003334. Its totient is φ = 21077003332.

The previous prime is 21077003309. The next prime is 21077003341. The reversal of 21077003333 is 33330077012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21076651684 + 351649 = 145178^2 + 593^2 .

It is a cyclic number.

It is not a de Polignac number, because 21077003333 - 2¹⁶ = 21076937797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21077003296 and 21077003305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21077003933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10538501666 + 10538501667.

It is an arithmetic number, because the mean of its divisors is an integer number (10538501667).

Almost surely, 2^21077003333 is an apocalyptic number.

It is an amenable number.

21077003333 is a deficient number, since it is larger than the sum of its proper divisors (1).

21077003333 is an equidigital number, since it uses as much as digits as its factorization.

21077003333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 29.

The spelling of 21077003333 in words is "twenty-one billion, seventy-seven million, three thousand, three hundred thirty-three".