103042121 has 16 divisors (see below), whose sum is σ = 127499904. Its totient is φ = 81091584.

The previous prime is 103042103. The next prime is 103042129. The reversal of 103042121 is 121240301.

It is not a de Polignac number, because 103042121 - 2⁶ = 103042057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103042096 and 103042105.

It is not an unprimeable number, because it can be changed into a prime (103042129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14630 + ... + 20496.

It is an arithmetic number, because the mean of its divisors is an integer number (7968744).

Almost surely, 2^103042121 is an apocalyptic number.

It is an amenable number.

103042121 is a deficient number, since it is larger than the sum of its proper divisors (24457783).

103042121 is a wasteful number, since it uses less digits than its factorization.

103042121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 103042121 is about 10150.9665057077. The cubic root of 103042121 is about 468.8187038616.

Adding to 103042121 its reverse (121240301), we get a palindrome (224282422).

The spelling of 103042121 in words is "one hundred three million, forty-two thousand, one hundred twenty-one".