138118144120 has 32 divisors (see below), whose sum is σ = 339017263920. Its totient is φ = 50224779520.

The previous prime is 138118144069. The next prime is 138118144127. The reversal of 138118144120 is 21441811831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138118144127) 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, 156951997 + ... + 156952876.

Almost surely, 2^138118144120 is an apocalyptic number.

138118144120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138118144120 is an abundant number, since it is smaller than the sum of its proper divisors (200899119800).

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

138118144120 is a wasteful number, since it uses less digits than its factorization.

138118144120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313904895 (or 313904891 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

Adding to 138118144120 its reverse (21441811831), we get a palindrome (159559955951).

The spelling of 138118144120 in words is "one hundred thirty-eight billion, one hundred eighteen million, one hundred forty-four thousand, one hundred twenty".