101331243 has 24 divisors (see below), whose sum is σ = 163469488. Its totient is φ = 62355744.

The previous prime is 101331239. The next prime is 101331257. The reversal of 101331243 is 342133101.

It is not a de Polignac number, because 101331243 - 2² = 101331239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101331233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12880 + ... + 19197.

Almost surely, 2^101331243 is an apocalyptic number.

101331243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

101331243 is a deficient number, since it is larger than the sum of its proper divisors (62138245).

101331243 is an equidigital number, since it uses as much as digits as its factorization.

101331243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32105 (or 32093 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 101331243 is about 10066.3420863787. The cubic root of 101331243 is about 466.2095047331.

Adding to 101331243 its reverse (342133101), we get a palindrome (443464344).

The spelling of 101331243 in words is "one hundred one million, three hundred thirty-one thousand, two hundred forty-three".