106121311 has 4 divisors (see below), whose sum is σ = 106312392. Its totient is φ = 105930232.

The previous prime is 106121299. The next prime is 106121329. The reversal of 106121311 is 113121601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113121601 = 79 ⋅1431919.

It is a cyclic number.

It is not a de Polignac number, because 106121311 - 2⁹ = 106120799 is a prime.

It is a super-2 number, since 2×106121311² = 22523465296717442, 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 (106121371) 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, 94705 + ... + 95818.

It is an arithmetic number, because the mean of its divisors is an integer number (26578098).

Almost surely, 2^106121311 is an apocalyptic number.

106121311 is a deficient number, since it is larger than the sum of its proper divisors (191081).

106121311 is an equidigital number, since it uses as much as digits as its factorization.

106121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191080.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 106121311 is about 10301.5198393247. The cubic root of 106121311 is about 473.4428209439.

Adding to 106121311 its reverse (113121601), we get a palindrome (219242912).

The spelling of 106121311 in words is "one hundred six million, one hundred twenty-one thousand, three hundred eleven".