3111343131 has 16 divisors (see below), whose sum is σ = 4571469056. Its totient is φ = 1870144416.

The previous prime is 3111343129. The next prime is 3111343187. The reversal of 3111343131 is 1313431113.

It is not a de Polignac number, because 3111343131 - 2¹ = 3111343129 is a prime.

It is a super-2 number, since 2×3111343131² = 19360912157641766322, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 3111343098 and 3111343107.

It is not an unprimeable number, because it can be changed into a prime (3111343231) 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 15 ways as a sum of consecutive naturals, for example, 925975 + ... + 929328.

It is an arithmetic number, because the mean of its divisors is an integer number (285716816).

Almost surely, 2^3111343131 is an apocalyptic number.

3111343131 is a deficient number, since it is larger than the sum of its proper divisors (1460125925).

3111343131 is a wasteful number, since it uses less digits than its factorization.

3111343131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855362.

The product of its digits is 324, while the sum is 21.

The square root of 3111343131 is about 55779.4149395635. The cubic root of 3111343131 is about 1459.8760029490.

Adding to 3111343131 its reverse (1313431113), we get a palindrome (4424774244).

The spelling of 3111343131 in words is "three billion, one hundred eleven million, three hundred forty-three thousand, one hundred thirty-one".