23555111043 has 16 divisors (see below), whose sum is σ = 31585478400. Its totient is φ = 15614253216.

The previous prime is 23555110993. The next prime is 23555111101. The reversal of 23555111043 is 34011155532.

It is not a de Polignac number, because 23555111043 - 2⁶ = 23555110979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23555111043.

It is not an unprimeable number, because it can be changed into a prime (23555111743) 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, 521058 + ... + 564456.

It is an arithmetic number, because the mean of its divisors is an integer number (1974092400).

Almost surely, 2^23555111043 is an apocalyptic number.

23555111043 is a deficient number, since it is larger than the sum of its proper divisors (8030367357).

23555111043 is a wasteful number, since it uses less digits than its factorization.

23555111043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44426.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 23555111043 its reverse (34011155532), we get a palindrome (57566266575).

The spelling of 23555111043 in words is "twenty-three billion, five hundred fifty-five million, one hundred eleven thousand, forty-three".