31304325340 has 12 divisors (see below), whose sum is σ = 65739083256. Its totient is φ = 12521730128.

The previous prime is 31304325323. The next prime is 31304325391. The reversal of 31304325340 is 4352340313.

It is a super-2 number, since 2×31304325340² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31304325299 and 31304325308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782608114 + ... + 782608153.

It is an arithmetic number, because the mean of its divisors is an integer number (5478256938).

Almost surely, 2^31304325340 is an apocalyptic number.

It is an amenable number.

31304325340 is an abundant number, since it is smaller than the sum of its proper divisors (34434757916).

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

31304325340 is a wasteful number, since it uses less digits than its factorization.

31304325340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565216276 (or 1565216274 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 31304325340 its reverse (4352340313), we get a palindrome (35656665653).

The spelling of 31304325340 in words is "thirty-one billion, three hundred four million, three hundred twenty-five thousand, three hundred forty".