103042 has 4 divisors (see below), whose sum is σ = 154566. Its totient is φ = 51520.

The previous prime is 103007. The next prime is 103043. The reversal of 103042 is 240301.

It is a Cunningham number, because it is equal to 321²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240301 = 41 ⋅5861.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 1 = 321^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (103043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25759 + ... + 25762.

2¹⁰³⁰⁴² is an apocalyptic number.

103042 is a deficient number, since it is larger than the sum of its proper divisors (51524).

103042 is an equidigital number, since it uses as much as digits as its factorization.

103042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51523.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 103042 is about 321.0015576286. The cubic root of 103042 is about 46.8818520354.

Adding to 103042 its reverse (240301), we get a palindrome (343343).

The spelling of 103042 in words is "one hundred three thousand, forty-two", and thus it is an iban number.