101116831 has 4 divisors (see below), whose sum is σ = 101493000. Its totient is φ = 100740664.

The previous prime is 101116811. The next prime is 101116843. The reversal of 101116831 is 138611101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138611101 = 6791 ⋅20411.

It is a cyclic number.

It is not a de Polignac number, because 101116831 - 2⁷ = 101116703 is a prime.

It is a super-2 number, since 2×101116831² = 20449227022965122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101116811) 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, 187681 + ... + 188218.

It is an arithmetic number, because the mean of its divisors is an integer number (25373250).

Almost surely, 2^101116831 is an apocalyptic number.

101116831 is a deficient number, since it is larger than the sum of its proper divisors (376169).

101116831 is an equidigital number, since it uses as much as digits as its factorization.

101116831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376168.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 101116831 is about 10055.6865006821. The cubic root of 101116831 is about 465.8804469601.

Adding to 101116831 its reverse (138611101), we get a palindrome (239727932).

The spelling of 101116831 in words is "one hundred one million, one hundred sixteen thousand, eight hundred thirty-one".