23020312011 has 8 divisors (see below), whose sum is σ = 32309209920. Its totient is φ = 14539144392.

The previous prime is 23020312009. The next prime is 23020312033. The reversal of 23020312011 is 11021302032.

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

It is not a de Polignac number, because 23020312011 - 2¹ = 23020312009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23020312411) 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, 201932505 + ... + 201932618.

It is an arithmetic number, because the mean of its divisors is an integer number (4038651240).

Almost surely, 2^23020312011 is an apocalyptic number.

23020312011 is a deficient number, since it is larger than the sum of its proper divisors (9288897909).

23020312011 is a wasteful number, since it uses less digits than its factorization.

23020312011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403865145.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23020312011 its reverse (11021302032), we get a palindrome (34041614043).

The spelling of 23020312011 in words is "twenty-three billion, twenty million, three hundred twelve thousand, eleven".