23121035 has 8 divisors (see below), whose sum is σ = 31708896. Its totient is φ = 15854400.

The previous prime is 23121031. The next prime is 23121047. The reversal of 23121035 is 53012132.

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

It is not a de Polignac number, because 23121035 - 2² = 23121031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23121031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330266 + ... + 330335.

It is an arithmetic number, because the mean of its divisors is an integer number (3963612).

Almost surely, 2^23121035 is an apocalyptic number.

23121035 is a deficient number, since it is larger than the sum of its proper divisors (8587861).

23121035 is an equidigital number, since it uses as much as digits as its factorization.

23121035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660613.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 23121035 is about 4808.4337366756. The cubic root of 23121035 is about 284.8846768463.

Adding to 23121035 its reverse (53012132), we get a palindrome (76133167).

The spelling of 23121035 in words is "twenty-three million, one hundred twenty-one thousand, thirty-five".