70103 has 4 divisors (see below), whose sum is σ = 76488. Its totient is φ = 63720.

The previous prime is 70099. The next prime is 70111. The reversal of 70103 is 30107.

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

It is a cyclic number.

It is not a de Polignac number, because 70103 - 2² = 70099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (11), and also a Moran number because the ratio is a prime number: 6373 = 70103 / (7 + 0 + 1 + 0 + 3).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70103.

It is not an unprimeable number, because it can be changed into a prime (70123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3176 + ... + 3197.

It is an arithmetic number, because the mean of its divisors is an integer number (19122).

2⁷⁰¹⁰³ is an apocalyptic number.

70103 is a deficient number, since it is larger than the sum of its proper divisors (6385).

70103 is a wasteful number, since it uses less digits than its factorization.

70103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6384.

The product of its (nonzero) digits is 21, while the sum is 11.

The square root of 70103 is about 264.7697112587. The cubic root of 70103 is about 41.2330570149.

The spelling of 70103 in words is "seventy thousand, one hundred three", and thus it is an iban number.