21020332092203 has 2 divisors, whose sum is σ = 21020332092204. Its totient is φ = 21020332092202.

The previous prime is 21020332092091. The next prime is 21020332092217. The reversal of 21020332092203 is 30229023302012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21020332092203 - 2²⁰ = 21020331043627 is a prime.

It is a super-2 number, since 2×21020332092203² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21020332092283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510166046101 + 10510166046102.

It is an arithmetic number, because the mean of its divisors is an integer number (10510166046102).

Almost surely, 2^{21020332092203} is an apocalyptic number.

21020332092203 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020332092203 is an equidigital number, since it uses as much as digits as its factorization.

21020332092203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 21020332092203 its reverse (30229023302012), we get a palindrome (51249355394215).

The spelling of 21020332092203 in words is "twenty-one trillion, twenty billion, three hundred thirty-two million, ninety-two thousand, two hundred three".