101321131 has 4 divisors (see below), whose sum is σ = 102050200. Its totient is φ = 100592064.

The previous prime is 101321117. The next prime is 101321137. The reversal of 101321131 is 131123101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131123101 = 173 ⋅757937.

It is a cyclic number.

It is not a de Polignac number, because 101321131 - 2⁹ = 101320619 is a prime.

It is a super-2 number, since 2×101321131² = 20531943174238322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101321137) 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 3 ways as a sum of consecutive naturals, for example, 364326 + ... + 364603.

It is an arithmetic number, because the mean of its divisors is an integer number (25512550).

Almost surely, 2^101321131 is an apocalyptic number.

101321131 is a deficient number, since it is larger than the sum of its proper divisors (729069).

101321131 is an equidigital number, since it uses as much as digits as its factorization.

101321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729068.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 101321131 is about 10065.8398059973. The cubic root of 101321131 is about 466.1939962969.

Adding to 101321131 its reverse (131123101), we get a palindrome (232444232).

The spelling of 101321131 in words is "one hundred one million, three hundred twenty-one thousand, one hundred thirty-one".