123131442130 has 32 divisors (see below), whose sum is σ = 227115016128. Its totient is φ = 48038424000.

The previous prime is 123131442053. The next prime is 123131442131. The reversal of 123131442130 is 31244131321.

It is a super-2 number, since 2×123131442130² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123131442095 and 123131442104.

It is not an unprimeable number, because it can be changed into a prime (123131442131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97185 + ... + 505675.

It is an arithmetic number, because the mean of its divisors is an integer number (7097344254).

Almost surely, 2^123131442130 is an apocalyptic number.

123131442130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123131442130 is a deficient number, since it is larger than the sum of its proper divisors (103983573998).

123131442130 is a wasteful number, since it uses less digits than its factorization.

123131442130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409242.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 123131442130 its reverse (31244131321), we get a palindrome (154375573451).

The spelling of 123131442130 in words is "one hundred twenty-three billion, one hundred thirty-one million, four hundred forty-two thousand, one hundred thirty".