3111402144 has 48 divisors (see below), whose sum is σ = 8171156448. Its totient is φ = 1036660992.

The previous prime is 3111402143. The next prime is 3111402157. The reversal of 3111402144 is 4412041113.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3111402144.

It is not an unprimeable number, because it can be changed into a prime (3111402143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250939 + ... + 263045.

It is an arithmetic number, because the mean of its divisors is an integer number (170232426).

Almost surely, 2^3111402144 is an apocalyptic number.

It is an amenable number.

3111402144 is an abundant number, since it is smaller than the sum of its proper divisors (5059754304).

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

3111402144 is a wasteful number, since it uses less digits than its factorization.

3111402144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14797 (or 14789 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 3111402144 is about 55779.9439225247. The cubic root of 3111402144 is about 1459.8852327376.

Adding to 3111402144 its reverse (4412041113), we get a palindrome (7523443257).

The spelling of 3111402144 in words is "three billion, one hundred eleven million, four hundred two thousand, one hundred forty-four".