23121039 has 8 divisors (see below), whose sum is σ = 31484160. Its totient is φ = 15085976.

The previous prime is 23121031. The next prime is 23121047. The reversal of 23121039 is 93012132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23121031) and next prime (23121047).

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 23121039 - 2³ = 23121031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121031) 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, 81849 + ... + 82130.

It is an arithmetic number, because the mean of its divisors is an integer number (3935520).

Almost surely, 2^23121039 is an apocalyptic number.

23121039 is a deficient number, since it is larger than the sum of its proper divisors (8363121).

23121039 is a wasteful number, since it uses less digits than its factorization.

23121039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164029.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 23121039 is about 4808.4341526114. The cubic root of 23121039 is about 284.8846932749.

The spelling of 23121039 in words is "twenty-three million, one hundred twenty-one thousand, thirty-nine".