31315445422 has 8 divisors (see below), whose sum is σ = 49445440200. Its totient is φ = 14833632024.

The previous prime is 31315445417. The next prime is 31315445449. The reversal of 31315445422 is 22454451313.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412045297 + ... + 412045372.

It is an arithmetic number, because the mean of its divisors is an integer number (6180680025).

Almost surely, 2^31315445422 is an apocalyptic number.

31315445422 is a deficient number, since it is larger than the sum of its proper divisors (18129994778).

31315445422 is a wasteful number, since it uses less digits than its factorization.

31315445422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824090690.

The product of its digits is 57600, while the sum is 34.

Adding to 31315445422 its reverse (22454451313), we get a palindrome (53769896735).

The spelling of 31315445422 in words is "thirty-one billion, three hundred fifteen million, four hundred forty-five thousand, four hundred twenty-two".