70123103 has 4 divisors (see below), whose sum is σ = 72018360. Its totient is φ = 68227848.

The previous prime is 70123069. The next prime is 70123117. The reversal of 70123103 is 30132107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30132107 = 89 ⋅338563.

It is a cyclic number.

It is not a de Polignac number, because 70123103 - 2¹⁴ = 70106719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70120103) 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, 947573 + ... + 947646.

It is an arithmetic number, because the mean of its divisors is an integer number (18004590).

Almost surely, 2^70123103 is an apocalyptic number.

70123103 is a deficient number, since it is larger than the sum of its proper divisors (1895257).

70123103 is a wasteful number, since it uses less digits than its factorization.

70123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895256.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 70123103 is about 8373.9538451081. The cubic root of 70123103 is about 412.3699802036.

The spelling of 70123103 in words is "seventy million, one hundred twenty-three thousand, one hundred three".