3112213140 has 36 divisors (see below), whose sum is σ = 9440380404. Its totient is φ = 829923456.

The previous prime is 3112213127. The next prime is 3112213151. The reversal of 3112213140 is 413122113.

3112213140 is a `hidden beast` number, since 311 + 2 + 213 + 140 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1612664964 + 1499548176 = 40158^2 + 38724^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8644857 + ... + 8645216.

It is an arithmetic number, because the mean of its divisors is an integer number (262232789).

Almost surely, 2^3112213140 is an apocalyptic number.

3112213140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3112213140 is an abundant number, since it is smaller than the sum of its proper divisors (6328167264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3112213140 is a wasteful number, since it uses less digits than its factorization.

3112213140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17290088 (or 17290083 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3112213140 is about 55787.2130510209. The cubic root of 3112213140 is about 1460.0120628265.

Adding to 3112213140 its reverse (413122113), we get a palindrome (3525335253).

The spelling of 3112213140 in words is "three billion, one hundred twelve million, two hundred thirteen thousand, one hundred forty".