31320125351344 has 20 divisors (see below), whose sum is σ = 60694984850224. Its totient is φ = 15656903454528.

The previous prime is 31320125351341. The next prime is 31320125351363. The reversal of 31320125351344 is 44315352102313.

It is a happy number.

It is a super-2 number, since 2×31320125351344² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31320125351341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197369532 + ... + 197528155.

Almost surely, 2^{31320125351344} is an apocalyptic number.

It is an amenable number.

31320125351344 is a deficient number, since it is larger than the sum of its proper divisors (29374859498880).

31320125351344 is a wasteful number, since it uses less digits than its factorization.

31320125351344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394902652 (or 394902646 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 31320125351344 its reverse (44315352102313), we get a palindrome (75635477453657).

The spelling of 31320125351344 in words is "thirty-one trillion, three hundred twenty billion, one hundred twenty-five million, three hundred fifty-one thousand, three hundred forty-four".