3111661113 has 32 divisors (see below), whose sum is σ = 4921845120. Its totient is φ = 1726940160.

The previous prime is 3111661109. The next prime is 3111661117.

3111661113 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (3111661109) and next prime (3111661117).

It is not a de Polignac number, because 3111661113 - 2² = 3111661109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3111661117) 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 31 ways as a sum of consecutive naturals, for example, 54198 + ... + 95711.

It is an arithmetic number, because the mean of its divisors is an integer number (153807660).

Almost surely, 2^3111661113 is an apocalyptic number.

3111661113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3111661113 is a deficient number, since it is larger than the sum of its proper divisors (1810184007).

3111661113 is a wasteful number, since it uses less digits than its factorization.

3111661113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149977.

The product of its digits is 324, while the sum is 24.

The square root of 3111661113 is about 55782.2652193329. The cubic root of 3111661113 is about 1459.9257347913.

It can be divided in two parts, 31116 and 61113, that added together give a palindrome (92229).

The spelling of 3111661113 in words is "three billion, one hundred eleven million, six hundred sixty-one thousand, one hundred thirteen".