130112020123 has 4 divisors (see below), whose sum is σ = 131400258048. Its totient is φ = 128823782200.

The previous prime is 130112020069. The next prime is 130112020169. The reversal of 130112020123 is 321020211031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130112020123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130112020097 and 130112020106.

It is not an unprimeable number, because it can be changed into a prime (130112030123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644118811 + ... + 644119012.

It is an arithmetic number, because the mean of its divisors is an integer number (32850064512).

Almost surely, 2^130112020123 is an apocalyptic number.

130112020123 is a deficient number, since it is larger than the sum of its proper divisors (1288237925).

130112020123 is a wasteful number, since it uses less digits than its factorization.

130112020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288237924.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 130112020123 its reverse (321020211031), we get a palindrome (451132231154).

The spelling of 130112020123 in words is "one hundred thirty billion, one hundred twelve million, twenty thousand, one hundred twenty-three".