2011022423 has 8 divisors (see below), whose sum is σ = 2030474160. Its totient is φ = 1991589120.

The previous prime is 2011022381. The next prime is 2011022449. The reversal of 2011022423 is 3242201102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011022423 is a prime.

It is a super-2 number, since 2×2011022423² = 8088422371617581858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011022473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328436 + ... + 334502.

It is an arithmetic number, because the mean of its divisors is an integer number (253809270).

Almost surely, 2^2011022423 is an apocalyptic number.

2011022423 is a deficient number, since it is larger than the sum of its proper divisors (19451737).

2011022423 is a wasteful number, since it uses less digits than its factorization.

2011022423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9217.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2011022423 is about 44844.4246590365. The cubic root of 2011022423 is about 1262.2313746422.

Adding to 2011022423 its reverse (3242201102), we get a palindrome (5253223525).

The spelling of 2011022423 in words is "two billion, eleven million, twenty-two thousand, four hundred twenty-three".