23133331255242 has 64 divisors (see below), whose sum is σ = 50063933114496. Its totient is φ = 7083972046080.

The previous prime is 23133331255241. The next prime is 23133331255273. The reversal of 23133331255242 is 24255213333132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 23133331255242.

It is not an unprimeable number, because it can be changed into a prime (23133331255241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16061517 + ... + 17442447.

It is an arithmetic number, because the mean of its divisors is an integer number (782248954914).

Almost surely, 2^{23133331255242} is an apocalyptic number.

23133331255242 is an abundant number, since it is smaller than the sum of its proper divisors (26930601859254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23133331255242 is a wasteful number, since it uses less digits than its factorization.

23133331255242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381975.

The product of its digits is 388800, while the sum is 39.

Adding to 23133331255242 its reverse (24255213333132), we get a palindrome (47388544588374).

The spelling of 23133331255242 in words is "twenty-three trillion, one hundred thirty-three billion, three hundred thirty-one million, two hundred fifty-five thousand, two hundred forty-two".