23040120311 has 16 divisors (see below), whose sum is σ = 25019702400. Its totient is φ = 21090382560.

The previous prime is 23040120283. The next prime is 23040120353. The reversal of 23040120311 is 11302104032.

It is not a de Polignac number, because 23040120311 - 2¹⁰ = 23040119287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23040120311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23040120511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2889416 + ... + 2897378.

It is an arithmetic number, because the mean of its divisors is an integer number (1563731400).

Almost surely, 2^23040120311 is an apocalyptic number.

23040120311 is a deficient number, since it is larger than the sum of its proper divisors (1979582089).

23040120311 is a wasteful number, since it uses less digits than its factorization.

23040120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9806.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23040120311 its reverse (11302104032), we get a palindrome (34342224343).

The spelling of 23040120311 in words is "twenty-three billion, forty million, one hundred twenty thousand, three hundred eleven".