23121051 has 8 divisors (see below), whose sum is σ = 30871824. Its totient is φ = 15392160.

The previous prime is 23121047. The next prime is 23121053. The reversal of 23121051 is 15012132.

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

It is not a de Polignac number, because 23121051 - 2² = 23121047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23121051.

It is not an unprimeable number, because it can be changed into a prime (23121053) 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, 2820 + ... + 7361.

It is an arithmetic number, because the mean of its divisors is an integer number (3858978).

Almost surely, 2^23121051 is an apocalyptic number.

23121051 is a deficient number, since it is larger than the sum of its proper divisors (7750773).

23121051 is a wasteful number, since it uses less digits than its factorization.

23121051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10941.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 23121051 is about 4808.4354004187. The cubic root of 23121051 is about 284.8847425607.

Adding to 23121051 its reverse (15012132), we get a palindrome (38133183).

The spelling of 23121051 in words is "twenty-three million, one hundred twenty-one thousand, fifty-one".