2001111023 has 2 divisors, whose sum is σ = 2001111024. Its totient is φ = 2001111022.

The previous prime is 2001111017. The next prime is 2001111029. The reversal of 2001111023 is 3201111002.

It is a balanced prime because it is at equal distance from previous prime (2001111017) and next prime (2001111029).

It is a cyclic number.

It is not a de Polignac number, because 2001111023 - 2¹⁴ = 2001094639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001110995 and 2001111013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001111029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000555511 + 1000555512.

It is an arithmetic number, because the mean of its divisors is an integer number (1000555512).

Almost surely, 2^2001111023 is an apocalyptic number.

2001111023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001111023 is an equidigital number, since it uses as much as digits as its factorization.

2001111023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2001111023 is about 44733.7794401501. The cubic root of 2001111023 is about 1260.1543069187.

Adding to 2001111023 its reverse (3201111002), we get a palindrome (5202222025).

The spelling of 2001111023 in words is "two billion, one million, one hundred eleven thousand, twenty-three".