23203244551 has 8 divisors (see below), whose sum is σ = 23827198464. Its totient is φ = 22586185440.

The previous prime is 23203244539. The next prime is 23203244569. The reversal of 23203244551 is 15544230232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23203244551 - 2¹³ = 23203236359 is a prime.

It is a super-2 number, since 2×23203244551² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203244651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1716880 + ... + 1730341.

It is an arithmetic number, because the mean of its divisors is an integer number (2978399808).

Almost surely, 2^23203244551 is an apocalyptic number.

23203244551 is a deficient number, since it is larger than the sum of its proper divisors (623953913).

23203244551 is a wasteful number, since it uses less digits than its factorization.

23203244551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447401.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 23203244551 its reverse (15544230232), we get a palindrome (38747474783).

The spelling of 23203244551 in words is "twenty-three billion, two hundred three million, two hundred forty-four thousand, five hundred fifty-one".