123000031130 has 16 divisors (see below), whose sum is σ = 221448237984. Its totient is φ = 49189305360.

The previous prime is 123000031127. The next prime is 123000031139. The reversal of 123000031130 is 31130000321.

It is not an unprimeable number, because it can be changed into a prime (123000031139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290056 + ... + 1382115.

It is an arithmetic number, because the mean of its divisors is an integer number (13840514874).

Almost surely, 2^123000031130 is an apocalyptic number.

123000031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123000031130 is a deficient number, since it is larger than the sum of its proper divisors (98448206854).

123000031130 is a wasteful number, since it uses less digits than its factorization.

123000031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676781.

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

Adding to 123000031130 its reverse (31130000321), we get a palindrome (154130031451).

The spelling of 123000031130 in words is "one hundred twenty-three billion, thirty-one thousand, one hundred thirty".