23020342011 has 6 divisors (see below), whose sum is σ = 33251605140. Its totient is φ = 15346894668.

The previous prime is 23020342003. The next prime is 23020342021. The reversal of 23020342011 is 11024302032.

23020342011 is a `hidden beast` number, since 2 + 30 + 203 + 420 + 11 = 666.

It is not a de Polignac number, because 23020342011 - 2³ = 23020342003 is a prime.

It is a super-2 number, since 2×23020342011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23020342021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1278907881 + ... + 1278907898.

It is an arithmetic number, because the mean of its divisors is an integer number (5541934190).

Almost surely, 2^23020342011 is an apocalyptic number.

23020342011 is a deficient number, since it is larger than the sum of its proper divisors (10231263129).

23020342011 is a wasteful number, since it uses less digits than its factorization.

23020342011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557815785 (or 2557815782 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23020342011 its reverse (11024302032), we get a palindrome (34044644043).

The spelling of 23020342011 in words is "twenty-three billion, twenty million, three hundred forty-two thousand, eleven".