101138012 has 12 divisors (see below), whose sum is σ = 179232480. Its totient is φ = 49928736.

The previous prime is 101137999. The next prime is 101138017. The reversal of 101138012 is 210831101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101138017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159713 + ... + 160344.

It is an arithmetic number, because the mean of its divisors is an integer number (14936040).

Almost surely, 2^101138012 is an apocalyptic number.

It is an amenable number.

101138012 is a deficient number, since it is larger than the sum of its proper divisors (78094468).

101138012 is a wasteful number, since it uses less digits than its factorization.

101138012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320140 (or 320138 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 101138012 is about 10056.7396307153. The cubic root of 101138012 is about 465.9129741029.

Adding to 101138012 its reverse (210831101), we get a palindrome (311969113).

The spelling of 101138012 in words is "one hundred one million, one hundred thirty-eight thousand, twelve".