23151233504 has 96 divisors (see below), whose sum is σ = 53864165376. Its totient is φ = 9585192960.

The previous prime is 23151233503. The next prime is 23151233527. The reversal of 23151233504 is 40533215132.

It is a happy number.

It is a super-2 number, since 2×23151233504² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23151233503) 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, 4490192 + ... + 4495344.

It is an arithmetic number, because the mean of its divisors is an integer number (561085056).

Almost surely, 2^23151233504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23151233504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26932082688).

23151233504 is an abundant number, since it is smaller than the sum of its proper divisors (30712931872).

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

23151233504 is a wasteful number, since it uses less digits than its factorization.

23151233504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848 (or 5840 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 23151233504 its reverse (40533215132), we get a palindrome (63684448636).

The spelling of 23151233504 in words is "twenty-three billion, one hundred fifty-one million, two hundred thirty-three thousand, five hundred four".