101131243 has 8 divisors (see below), whose sum is σ = 107294720. Its totient is φ = 95051880.

The previous prime is 101131237. The next prime is 101131259. The reversal of 101131243 is 342131101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-101131243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101131273) 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, 18543 + ... + 23368.

It is an arithmetic number, because the mean of its divisors is an integer number (13411840).

Almost surely, 2^101131243 is an apocalyptic number.

101131243 is a deficient number, since it is larger than the sum of its proper divisors (6163477).

101131243 is a wasteful number, since it uses less digits than its factorization.

101131243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42057.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 101131243 is about 10056.4030846024. The cubic root of 101131243 is about 465.9025796093.

Adding to 101131243 its reverse (342131101), we get a palindrome (443262344).

The spelling of 101131243 in words is "one hundred one million, one hundred thirty-one thousand, two hundred forty-three".