2120023111 has 2 divisors, whose sum is σ = 2120023112. Its totient is φ = 2120023110.

The previous prime is 2120023093. The next prime is 2120023117. The reversal of 2120023111 is 1113200212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120023111 - 2⁵ = 2120023079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120023091 and 2120023100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120023117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060011555 + 1060011556.

It is an arithmetic number, because the mean of its divisors is an integer number (1060011556).

Almost surely, 2^2120023111 is an apocalyptic number.

2120023111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120023111 is an equidigital number, since it uses as much as digits as its factorization.

2120023111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2120023111 is about 46043.7087016239. The cubic root of 2120023111 is about 1284.6363257965.

Adding to 2120023111 its reverse (1113200212), we get a palindrome (3233223323).

The spelling of 2120023111 in words is "two billion, one hundred twenty million, twenty-three thousand, one hundred eleven".