31253560222145 has 8 divisors (see below), whose sum is σ = 37504621164456. Its totient is φ = 25002615579136.

The previous prime is 31253560222127. The next prime is 31253560222153. The reversal of 31253560222145 is 54122206535213.

It can be written as a sum of positive squares in 4 ways, for example, as 13993158192049 + 17260402030096 = 3740743^2 + 4154564^2 .

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 31253560222145 - 2³⁸ = 30978682315201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28482512 + ... + 29559441.

It is an arithmetic number, because the mean of its divisors is an integer number (4688077645557).

Almost surely, 2^{31253560222145} is an apocalyptic number.

It is an amenable number.

31253560222145 is a deficient number, since it is larger than the sum of its proper divisors (6251060942311).

31253560222145 is a wasteful number, since it uses less digits than its factorization.

31253560222145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58149651.

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 31253560222145 its reverse (54122206535213), we get a palindrome (85375766757358).

The spelling of 31253560222145 in words is "thirty-one trillion, two hundred fifty-three billion, five hundred sixty million, two hundred twenty-two thousand, one hundred forty-five".