40311231325 has 6 divisors (see below), whose sum is σ = 49985926874. Its totient is φ = 32248985040.

The previous prime is 40311231299. The next prime is 40311231341. The reversal of 40311231325 is 52313211304.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5461062201 + 34850169124 = 73899^2 + 186682^2 .

It is not a de Polignac number, because 40311231325 - 2²⁵ = 40277676893 is a prime.

It is a super-2 number, since 2×40311231325² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1612449253 = 40311231325 / (4 + 0 + 3 + 1 + 1 + 2 + 3 + 1 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40311231325.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 806224602 + ... + 806224651.

Almost surely, 2^40311231325 is an apocalyptic number.

It is an amenable number.

40311231325 is a deficient number, since it is larger than the sum of its proper divisors (9674695549).

40311231325 is a wasteful number, since it uses less digits than its factorization.

40311231325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612449263 (or 1612449258 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 40311231325 its reverse (52313211304), we get a palindrome (92624442629).

The spelling of 40311231325 in words is "forty billion, three hundred eleven million, two hundred thirty-one thousand, three hundred twenty-five".