31413553330440 has 64 divisors (see below), whose sum is σ = 94241196567360. Its totient is φ = 8376899859200.

The previous prime is 31413553330417. The next prime is 31413553330441. The reversal of 31413553330440 is 4403335531413.

It is a super-2 number, since 2×31413553330440² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31413553330441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23762890 + ... + 25049990.

It is an arithmetic number, because the mean of its divisors is an integer number (1472518696365).

Almost surely, 2^{31413553330440} is an apocalyptic number.

31413553330440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31413553330440 is an abundant number, since it is smaller than the sum of its proper divisors (62827643236920).

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

31413553330440 is a wasteful number, since it uses less digits than its factorization.

31413553330440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490502 (or 1490498 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 39.

Adding to 31413553330440 its reverse (4403335531413), we get a palindrome (35816888861853).

The spelling of 31413553330440 in words is "thirty-one trillion, four hundred thirteen billion, five hundred fifty-three million, three hundred thirty thousand, four hundred forty".