31253020543345 has 8 divisors (see below), whose sum is σ = 37504024517376. Its totient is φ = 25002149857776.

The previous prime is 31253020543333. The next prime is 31253020543373. The reversal of 31253020543345 is 54334502035213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31253020543345 - 2⁵ = 31253020543313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31253020543298 and 31253020543307.

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 7 ways as a sum of consecutive naturals, for example, 32805537 + ... + 33744766.

It is an arithmetic number, because the mean of its divisors is an integer number (4688003064672).

Almost surely, 2^{31253020543345} is an apocalyptic number.

It is an amenable number.

31253020543345 is a deficient number, since it is larger than the sum of its proper divisors (6251003974031).

31253020543345 is an equidigital number, since it uses as much as digits as its factorization.

31253020543345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66644231.

The product of its (nonzero) digits is 648000, while the sum is 40.

Adding to 31253020543345 its reverse (54334502035213), we get a palindrome (85587522578558).

The spelling of 31253020543345 in words is "thirty-one trillion, two hundred fifty-three billion, twenty million, five hundred forty-three thousand, three hundred forty-five".