23121202 has 16 divisors (see below), whose sum is σ = 37703232. Its totient is φ = 10570320.

The previous prime is 23121193. The next prime is 23121209. The reversal of 23121202 is 20212132.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (23121209) 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, 1374 + ... + 6937.

It is an arithmetic number, because the mean of its divisors is an integer number (2356452).

Almost surely, 2^23121202 is an apocalyptic number.

23121202 is a deficient number, since it is larger than the sum of its proper divisors (14582030).

23121202 is a wasteful number, since it uses less digits than its factorization.

23121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8433.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 23121202 is about 4808.4511019662. The cubic root of 23121202 is about 284.8853627387.

Adding to 23121202 its reverse (20212132), we get a palindrome (43333334).

The spelling of 23121202 in words is "twenty-three million, one hundred twenty-one thousand, two hundred two".