138312343130 has 16 divisors (see below), whose sum is σ = 268113157704. Its totient is φ = 51069172800.

The previous prime is 138312343093. The next prime is 138312343207. The reversal of 138312343130 is 31343213831.

It can be written as a sum of positive squares in 4 ways, for example, as 82899653929 + 55412689201 = 287923^2 + 235399^2 .

It is a super-2 number, since 2×138312343130² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531970421 + ... + 531970680.

Almost surely, 2^138312343130 is an apocalyptic number.

138312343130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138312343130 is a deficient number, since it is larger than the sum of its proper divisors (129800814574).

138312343130 is a wasteful number, since it uses less digits than its factorization.

138312343130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063941121.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 138312343130 its reverse (31343213831), we get a palindrome (169655556961).

The spelling of 138312343130 in words is "one hundred thirty-eight billion, three hundred twelve million, three hundred forty-three thousand, one hundred thirty".