11311333425 has 48 divisors (see below), whose sum is σ = 23747825280. Its totient is φ = 5170893120.

The previous prime is 11311333399. The next prime is 11311333433. The reversal of 11311333425 is 52433311311.

11311333425 is a `hidden beast` number, since 1 + 1 + 311 + 3 + 3 + 342 + 5 = 666.

It is not a de Polignac number, because 11311333425 - 2¹¹ = 11311331377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1192242 + ... + 1201691.

It is an arithmetic number, because the mean of its divisors is an integer number (494746360).

Almost surely, 2^11311333425 is an apocalyptic number.

11311333425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11311333425 is an abundant number, since it is smaller than the sum of its proper divisors (12436491855).

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

11311333425 is a wasteful number, since it uses less digits than its factorization.

11311333425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393959 (or 2393948 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

Adding to 11311333425 its reverse (52433311311), we get a palindrome (63744644736).

The spelling of 11311333425 in words is "eleven billion, three hundred eleven million, three hundred thirty-three thousand, four hundred twenty-five".