31322012033 has 8 divisors (see below), whose sum is σ = 34554115176. Its totient is φ = 28207440000.

The previous prime is 31322011999. The next prime is 31322012119. The reversal of 31322012033 is 33021022313.

It can be written as a sum of positive squares in 4 ways, for example, as 6467858929 + 24854153104 = 80423^2 + 157652^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31322012033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31322011996 and 31322012014.

It is not an unprimeable number, because it can be changed into a prime (31322012633) 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, 29382218 + ... + 29383283.

It is an arithmetic number, because the mean of its divisors is an integer number (4319264397).

Almost surely, 2^31322012033 is an apocalyptic number.

It is an amenable number.

31322012033 is a deficient number, since it is larger than the sum of its proper divisors (3232103143).

31322012033 is a wasteful number, since it uses less digits than its factorization.

31322012033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58765555.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31322012033 its reverse (33021022313), we get a palindrome (64343034346).

The spelling of 31322012033 in words is "thirty-one billion, three hundred twenty-two million, twelve thousand, thirty-three".