103152121 has 4 divisors (see below), whose sum is σ = 108581200. Its totient is φ = 97723044.

The previous prime is 103152109. The next prime is 103152143. The reversal of 103152121 is 121251301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103152121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103152095 and 103152104.

It is not an unprimeable number, because it can be changed into a prime (103152521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2714511 + ... + 2714548.

It is an arithmetic number, because the mean of its divisors is an integer number (27145300).

Almost surely, 2^103152121 is an apocalyptic number.

It is an amenable number.

103152121 is a deficient number, since it is larger than the sum of its proper divisors (5429079).

103152121 is an equidigital number, since it uses as much as digits as its factorization.

103152121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429078.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 103152121 is about 10156.3832637411. The cubic root of 103152121 is about 468.9854697014.

The spelling of 103152121 in words is "one hundred three million, one hundred fifty-two thousand, one hundred twenty-one".