20023030211 has 2 divisors, whose sum is σ = 20023030212. Its totient is φ = 20023030210.

The previous prime is 20023030171. The next prime is 20023030249. The reversal of 20023030211 is 11203032002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20023030211 - 2⁶ = 20023030147 is a prime.

It is not a weakly prime, because it can be changed into another prime (20023030271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011515105 + 10011515106.

It is an arithmetic number, because the mean of its divisors is an integer number (10011515106).

Almost surely, 2^20023030211 is an apocalyptic number.

20023030211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023030211 is an equidigital number, since it uses as much as digits as its factorization.

20023030211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20023030211 its reverse (11203032002), we get a palindrome (31226062213).

The spelling of 20023030211 in words is "twenty billion, twenty-three million, thirty thousand, two hundred eleven".