123123400130 has 64 divisors (see below), whose sum is σ = 233246407680. Its totient is φ = 46704784896.

The previous prime is 123123400039. The next prime is 123123400157. The reversal of 123123400130 is 31004321321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12803204 + ... + 12812816.

It is an arithmetic number, because the mean of its divisors is an integer number (3644475120).

Almost surely, 2^123123400130 is an apocalyptic number.

123123400130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123123400130 is a deficient number, since it is larger than the sum of its proper divisors (110123007550).

123123400130 is a wasteful number, since it uses less digits than its factorization.

123123400130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10115.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123123400130 its reverse (31004321321), we get a palindrome (154127721451).

The spelling of 123123400130 in words is "one hundred twenty-three billion, one hundred twenty-three million, four hundred thousand, one hundred thirty".