123013130 has 24 divisors (see below), whose sum is σ = 224083692. Its totient is φ = 48621056.

The previous prime is 123013129. The next prime is 123013151. The reversal of 123013130 is 31310321.

It can be written as a sum of positive squares in 6 ways, for example, as 2825761 + 120187369 = 1681^2 + 10963^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78434 + ... + 79986.

Almost surely, 2^123013130 is an apocalyptic number.

123013130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123013130 is a deficient number, since it is larger than the sum of its proper divisors (101070562).

123013130 is an equidigital number, since it uses as much as digits as its factorization.

123013130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 123013130 is about 11091.1284367282. The cubic root of 123013130 is about 497.3366786274.

Adding to 123013130 its reverse (31310321), we get a palindrome (154323451).

The spelling of 123013130 in words is "one hundred twenty-three million, thirteen thousand, one hundred thirty".