103213042 has 4 divisors (see below), whose sum is σ = 154819566. Its totient is φ = 51606520.

The previous prime is 103213039. The next prime is 103213049. The reversal of 103213042 is 240312301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 74494161 + 28718881 = 8631^2 + 5359^2 .

It is not an unprimeable number, because it can be changed into a prime (103213049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25803259 + ... + 25803262.

Almost surely, 2^103213042 is an apocalyptic number.

103213042 is a deficient number, since it is larger than the sum of its proper divisors (51606524).

103213042 is an equidigital number, since it uses as much as digits as its factorization.

103213042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51606523.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 103213042 is about 10159.3819693916. The cubic root of 103213042 is about 469.0777781636.

Adding to 103213042 its reverse (240312301), we get a palindrome (343525343).

The spelling of 103213042 in words is "one hundred three million, two hundred thirteen thousand, forty-two".