31324442222402 has 16 divisors (see below), whose sum is σ = 55431271030272. Its totient is φ = 12991704147360.

The previous prime is 31324442222393. The next prime is 31324442222471. The reversal of 31324442222402 is 20422224442313.

It is a super-2 number, since 2×31324442222402² (a number of 28 digits) contains 22 as substring.

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, 36088066643 + ... + 36088067510.

It is an arithmetic number, because the mean of its divisors is an integer number (3464454439392).

Almost surely, 2^{31324442222402} is an apocalyptic number.

31324442222402 is a deficient number, since it is larger than the sum of its proper divisors (24106828807870).

31324442222402 is a wasteful number, since it uses less digits than its factorization.

31324442222402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72176134193.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 31324442222402 its reverse (20422224442313), we get a palindrome (51746666664715).

The spelling of 31324442222402 in words is "thirty-one trillion, three hundred twenty-four billion, four hundred forty-two million, two hundred twenty-two thousand, four hundred two".