21230200232011 has 2 divisors, whose sum is σ = 21230200232012. Its totient is φ = 21230200232010.

The previous prime is 21230200231991. The next prime is 21230200232029. The reversal of 21230200232011 is 11023200203212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21230200232011 - 2³⁷ = 21092761278539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21230200232011.

It is not a weakly prime, because it can be changed into another prime (21230200232041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615100116005 + 10615100116006.

It is an arithmetic number, because the mean of its divisors is an integer number (10615100116006).

Almost surely, 2^{21230200232011} is an apocalyptic number.

21230200232011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21230200232011 is an equidigital number, since it uses as much as digits as its factorization.

21230200232011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21230200232011 its reverse (11023200203212), we get a palindrome (32253400435223).

The spelling of 21230200232011 in words is "twenty-one trillion, two hundred thirty billion, two hundred million, two hundred thirty-two thousand, eleven".