123070 has 16 divisors (see below), whose sum is σ = 229248. Its totient is φ = 47520.

The previous prime is 123059. The next prime is 123077. The reversal of 123070 is 70321.

123070 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is an Ulam number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 123070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123077) by changing a digit.

123070 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 508.

It is an arithmetic number, because the mean of its divisors is an integer number (14328).

2¹²³⁰⁷⁰ is an apocalyptic number.

123070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123070 is a deficient number, since it is larger than the sum of its proper divisors (106178).

123070 is a wasteful number, since it uses less digits than its factorization.

123070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 123070 is about 350.8133406813. The cubic root of 123070 is about 49.7413307790.

Adding to 123070 its reverse (70321), we get a palindrome (193391).

The spelling of 123070 in words is "one hundred twenty-three thousand, seventy", and thus it is an iban number.