31322003220029 has 4 divisors (see below), whose sum is σ = 31352680991100. Its totient is φ = 31291325448960.

The previous prime is 31322003219989. The next prime is 31322003220049. The reversal of 31322003220029 is 92002230022313.

It is a happy number.

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 6703516483225 + 24618486736804 = 2589115^2 + 4961702^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322003220029 - 2⁴⁰ = 30222491592253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31322003219983 and 31322003220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322003220049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15338884004 + ... + 15338886045.

It is an arithmetic number, because the mean of its divisors is an integer number (7838170247775).

Almost surely, 2^{31322003220029} is an apocalyptic number.

It is an amenable number.

31322003220029 is a deficient number, since it is larger than the sum of its proper divisors (30677771071).

31322003220029 is a wasteful number, since it uses less digits than its factorization.

31322003220029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30677771070.

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 31322003220029 in words is "thirty-one trillion, three hundred twenty-two billion, three million, two hundred twenty thousand, twenty-nine".