107781311 has 4 divisors (see below), whose sum is σ = 117579624. Its totient is φ = 97983000.

The previous prime is 107781301. The next prime is 107781329. The reversal of 107781311 is 113187701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 107781311 - 2²⁶ = 40672447 is a prime.

It is a super-2 number, since 2×107781311² = 23233622001757442, 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 (107781301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4899140 + ... + 4899161.

It is an arithmetic number, because the mean of its divisors is an integer number (29394906).

Almost surely, 2^107781311 is an apocalyptic number.

107781311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

107781311 is a deficient number, since it is larger than the sum of its proper divisors (9798313).

107781311 is an equidigital number, since it uses as much as digits as its factorization.

107781311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9798312.

The product of its (nonzero) digits is 1176, while the sum is 29.

The square root of 107781311 is about 10381.7778342633. Note that the first 3 decimals coincide. The cubic root of 107781311 is about 475.8986658450.

The spelling of 107781311 in words is "one hundred seven million, seven hundred eighty-one thousand, three hundred eleven".