31322003220133 has 4 divisors (see below), whose sum is σ = 31428904255308. Its totient is φ = 31215102184960.

The previous prime is 31322003220097. The next prime is 31322003220217. The reversal of 31322003220133 is 33102230022313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23125932777249 + 8196070442884 = 4808943^2 + 2862878^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322003220133 - 2⁴¹ = 29122979964581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31322003220098 and 31322003220107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322003220433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53450517148 + ... + 53450517733.

It is an arithmetic number, because the mean of its divisors is an integer number (7857226063827).

Almost surely, 2^{31322003220133} is an apocalyptic number.

It is an amenable number.

31322003220133 is a deficient number, since it is larger than the sum of its proper divisors (106901035175).

31322003220133 is a wasteful number, since it uses less digits than its factorization.

31322003220133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106901035174.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31322003220133 its reverse (33102230022313), we get a palindrome (64424233242446).

The spelling of 31322003220133 in words is "thirty-one trillion, three hundred twenty-two billion, three million, two hundred twenty thousand, one hundred thirty-three".