23011220045 has 16 divisors (see below), whose sum is σ = 30486722112. Its totient is φ = 16533797760.

The previous prime is 23011220041. The next prime is 23011220047. The reversal of 23011220045 is 54002211032.

It is not a de Polignac number, because 23011220045 - 2² = 23011220041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23011219999 and 23011220026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011220041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2515832 + ... + 2524961.

It is an arithmetic number, because the mean of its divisors is an integer number (1905420132).

Almost surely, 2^23011220045 is an apocalyptic number.

It is an amenable number.

23011220045 is a deficient number, since it is larger than the sum of its proper divisors (7475502067).

23011220045 is a wasteful number, since it uses less digits than its factorization.

23011220045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040892.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 23011220045 its reverse (54002211032), we get a palindrome (77013431077).

The spelling of 23011220045 in words is "twenty-three billion, eleven million, two hundred twenty thousand, forty-five".