23011013011 has 4 divisors (see below), whose sum is σ = 26298300592. Its totient is φ = 19723725432.

The previous prime is 23011013009. The next prime is 23011013029. The reversal of 23011013011 is 11031011032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23011013011 - 2¹ = 23011013009 is a prime.

It is a super-2 number, since 2×23011013011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23011012982 and 23011013000.

It is not an unprimeable number, because it can be changed into a prime (23011013111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1643643780 + ... + 1643643793.

It is an arithmetic number, because the mean of its divisors is an integer number (6574575148).

Almost surely, 2^23011013011 is an apocalyptic number.

23011013011 is a deficient number, since it is larger than the sum of its proper divisors (3287287581).

23011013011 is an equidigital number, since it uses as much as digits as its factorization.

23011013011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287287580.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 23011013011 its reverse (11031011032), we get a palindrome (34042024043).

The spelling of 23011013011 in words is "twenty-three billion, eleven million, thirteen thousand, eleven".