103142121 has 8 divisors (see below), whose sum is σ = 138446400. Its totient is φ = 68299632.

The previous prime is 103142093. The next prime is 103142131. The reversal of 103142121 is 121241301.

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

It is not a de Polignac number, because 103142121 - 2⁶ = 103142057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103142121.

It is not an unprimeable number, because it can be changed into a prime (103142131) 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, 114925 + ... + 115818.

It is an arithmetic number, because the mean of its divisors is an integer number (17305800).

Almost surely, 2^103142121 is an apocalyptic number.

It is an amenable number.

103142121 is a deficient number, since it is larger than the sum of its proper divisors (35304279).

103142121 is a wasteful number, since it uses less digits than its factorization.

103142121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230895.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 103142121 is about 10155.8909505764. The cubic root of 103142121 is about 468.9703140710.

Adding to 103142121 its reverse (121241301), we get a palindrome (224383422).

The spelling of 103142121 in words is "one hundred three million, one hundred forty-two thousand, one hundred twenty-one".