31132320001 has 8 divisors (see below), whose sum is σ = 31577045864. Its totient is φ = 30688087680.

The previous prime is 31132319971. The next prime is 31132320029. The reversal of 31132320001 is 10002323113.

It can be written as a sum of positive squares in 4 ways, for example, as 1522170225 + 29610149776 = 39015^2 + 172076^2 .

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 31132320001 - 2⁵ = 31132319969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31132320071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4615 + ... + 249571.

It is an arithmetic number, because the mean of its divisors is an integer number (3947130733).

Almost surely, 2^31132320001 is an apocalyptic number.

It is an amenable number.

31132320001 is a deficient number, since it is larger than the sum of its proper divisors (444725863).

31132320001 is a wasteful number, since it uses less digits than its factorization.

31132320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246771.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31132320001 its reverse (10002323113), we get a palindrome (41134643114).

The spelling of 31132320001 in words is "thirty-one billion, one hundred thirty-two million, three hundred twenty thousand, one".