23121042303 has 8 divisors (see below), whose sum is σ = 30832769968. Its totient is φ = 15411671424.

The previous prime is 23121042299. The next prime is 23121042319. The reversal of 23121042303 is 30324012132.

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

It is not a de Polignac number, because 23121042303 - 2² = 23121042299 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 23121042303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121042323) 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, 566176 + ... + 605637.

It is an arithmetic number, because the mean of its divisors is an integer number (3854096246).

Almost surely, 2^23121042303 is an apocalyptic number.

23121042303 is a deficient number, since it is larger than the sum of its proper divisors (7711727665).

23121042303 is a wasteful number, since it uses less digits than its factorization.

23121042303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178393.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23121042303 its reverse (30324012132), we get a palindrome (53445054435).

The spelling of 23121042303 in words is "twenty-three billion, one hundred twenty-one million, forty-two thousand, three hundred three".