123400310130 has 24 divisors (see below), whose sum is σ = 320840806572. Its totient is φ = 32906749344.

The previous prime is 123400310057. The next prime is 123400310153. The reversal of 123400310130 is 31013004321.

123400310130 is a `hidden beast` number, since 1 + 2 + 340 + 0 + 310 + 13 + 0 = 666.

123400310130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 103316602041 + 20083708089 = 321429^2 + 141717^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 685557189 + ... + 685557368.

Almost surely, 2^123400310130 is an apocalyptic number.

123400310130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123400310130 is an abundant number, since it is smaller than the sum of its proper divisors (197440496442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123400310130 is a wasteful number, since it uses less digits than its factorization.

123400310130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371114570 (or 1371114567 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123400310130 its reverse (31013004321), we get a palindrome (154413314451).

The spelling of 123400310130 in words is "one hundred twenty-three billion, four hundred million, three hundred ten thousand, one hundred thirty".