103020123 has 4 divisors (see below), whose sum is σ = 137360168. Its totient is φ = 68680080.

The previous prime is 103020107. The next prime is 103020149. The reversal of 103020123 is 321020301.

It is a happy number.

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

It is not a de Polignac number, because 103020123 - 2⁴ = 103020107 is a prime.

It is a super-2 number, since 2×103020123² = 21226291485870258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103020099 and 103020108.

It is not an unprimeable number, because it can be changed into a prime (103020023) 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, 17170018 + ... + 17170023.

It is an arithmetic number, because the mean of its divisors is an integer number (34340042).

Almost surely, 2^103020123 is an apocalyptic number.

103020123 is a deficient number, since it is larger than the sum of its proper divisors (34340045).

103020123 is an equidigital number, since it uses as much as digits as its factorization.

103020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34340044.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 103020123 is about 10149.8829057285. The cubic root of 103020123 is about 468.7853394868.

Adding to 103020123 its reverse (321020301), we get a palindrome (424040424).

The spelling of 103020123 in words is "one hundred three million, twenty thousand, one hundred twenty-three".