101381039 has 4 divisors (see below), whose sum is σ = 101417640. Its totient is φ = 101344440.

The previous prime is 101381003. The next prime is 101381041. The reversal of 101381039 is 930183101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930183101 = 17 ⋅54716653.

It is a cyclic number.

It is not a de Polignac number, because 101381039 - 2¹² = 101376943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101380999 and 101381017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101381089) 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, 13772 + ... + 19809.

It is an arithmetic number, because the mean of its divisors is an integer number (25354410).

Almost surely, 2^101381039 is an apocalyptic number.

101381039 is a deficient number, since it is larger than the sum of its proper divisors (36601).

101381039 is an equidigital number, since it uses as much as digits as its factorization.

101381039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36600.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 101381039 is about 10068.8151735942. The cubic root of 101381039 is about 466.2858601461.

The spelling of 101381039 in words is "one hundred one million, three hundred eighty-one thousand, thirty-nine".