101242131 has 8 divisors (see below), whose sum is σ = 135145920. Its totient is φ = 67416552.

The previous prime is 101242121. The next prime is 101242139. The reversal of 101242131 is 131242101.

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

It is not a de Polignac number, because 101242131 - 2¹³ = 101233939 is a prime.

It is a super-2 number, since 2×101242131² = 20499938178842322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101242131.

It is not an unprimeable number, because it can be changed into a prime (101242139) 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 7 ways as a sum of consecutive naturals, for example, 16461 + ... + 21758.

It is an arithmetic number, because the mean of its divisors is an integer number (16893240).

Almost surely, 2^101242131 is an apocalyptic number.

101242131 is a deficient number, since it is larger than the sum of its proper divisors (33903789).

101242131 is an equidigital number, since it uses as much as digits as its factorization.

101242131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39105.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 101242131 is about 10061.9148773978. The cubic root of 101242131 is about 466.0728011049.

Adding to 101242131 its reverse (131242101), we get a palindrome (232484232).

The spelling of 101242131 in words is "one hundred one million, two hundred forty-two thousand, one hundred thirty-one".