23020212011 has 2 divisors, whose sum is σ = 23020212012. Its totient is φ = 23020212010.

The previous prime is 23020211999. The next prime is 23020212029. The reversal of 23020212011 is 11021202032.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23020212011 is a prime.

It is a super-2 number, since 2×23020212011² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23020212311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510106005 + 11510106006.

It is an arithmetic number, because the mean of its divisors is an integer number (11510106006).

Almost surely, 2^23020212011 is an apocalyptic number.

23020212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23020212011 is an equidigital number, since it uses as much as digits as its factorization.

23020212011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 23020212011 its reverse (11021202032), we get a palindrome (34041414043).

It can be divided in two parts, 2302021 and 2011, that added together give a palindrome (2304032).

The spelling of 23020212011 in words is "twenty-three billion, twenty million, two hundred twelve thousand, eleven".