31350453385 has 4 divisors (see below), whose sum is σ = 37620544068. Its totient is φ = 25080362704.

The previous prime is 31350453361. The next prime is 31350453391. The reversal of 31350453385 is 58335405313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58335405313 = 4703 ⋅12403871.

It can be written as a sum of positive squares in 2 ways, for example, as 10135656976 + 21214796409 = 100676^2 + 145653^2 .

It is a cyclic number.

It is not a de Polignac number, because 31350453385 - 2¹¹ = 31350451337 is a prime.

It is a Duffinian 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, 3135045334 + ... + 3135045343.

It is an arithmetic number, because the mean of its divisors is an integer number (9405136017).

Almost surely, 2^31350453385 is an apocalyptic number.

It is an amenable number.

31350453385 is a deficient number, since it is larger than the sum of its proper divisors (6270090683).

31350453385 is an equidigital number, since it uses as much as digits as its factorization.

31350453385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270090682.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 31350453385 its reverse (58335405313), we get a palindrome (89685858698).

The spelling of 31350453385 in words is "thirty-one billion, three hundred fifty million, four hundred fifty-three thousand, three hundred eighty-five".