103142213 has 4 divisors (see below), whose sum is σ = 109209420. Its totient is φ = 97075008.

The previous prime is 103142209. The next prime is 103142227. The reversal of 103142213 is 312241301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47087044 + 56055169 = 6862^2 + 7487^2 .

It is a cyclic number.

It is not a de Polignac number, because 103142213 - 2² = 103142209 is a prime.

It is a super-2 number, since 2×103142213² = 21276632205074738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6067189 = 103142213 / (1 + 0 + 3 + 1 + 4 + 2 + 2 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103142191 and 103142200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103142713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3033578 + ... + 3033611.

It is an arithmetic number, because the mean of its divisors is an integer number (27302355).

Almost surely, 2^103142213 is an apocalyptic number.

It is an amenable number.

103142213 is a deficient number, since it is larger than the sum of its proper divisors (6067207).

103142213 is an equidigital number, since it uses as much as digits as its factorization.

103142213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067206.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 103142213 is about 10155.8954799663. The cubic root of 103142213 is about 468.9704535072.

Adding to 103142213 its reverse (312241301), we get a palindrome (415383514).

The spelling of 103142213 in words is "one hundred three million, one hundred forty-two thousand, two hundred thirteen".