3111403525425 has 72 divisors (see below), whose sum is σ = 6032017535544. Its totient is φ = 1523992135680.

The previous prime is 3111403525421. The next prime is 3111403525459. The reversal of 3111403525425 is 5245253041113.

3111403525425 is a `hidden beast` number, since 31 + 11 + 40 + 35 + 2 + 542 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 41857477281 + 3069546048144 = 204591^2 + 1752012^2 .

It is not a de Polignac number, because 3111403525425 - 2² = 3111403525421 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3111403525425.

It is not an unprimeable number, because it can be changed into a prime (3111403525421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2123592 + ... + 3276041.

It is an arithmetic number, because the mean of its divisors is an integer number (83778021327).

Almost surely, 2^{3111403525425} is an apocalyptic number.

It is an amenable number.

3111403525425 is a deficient number, since it is larger than the sum of its proper divisors (2920614010119).

3111403525425 is a wasteful number, since it uses less digits than its factorization.

3111403525425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399859 (or 5399851 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 3111403525425 its reverse (5245253041113), we get a palindrome (8356656566538).

The spelling of 3111403525425 in words is "three trillion, one hundred eleven billion, four hundred three million, five hundred twenty-five thousand, four hundred twenty-five".