31443014422 has 4 divisors (see below), whose sum is σ = 47164521636. Its totient is φ = 15721507210.

The previous prime is 31443014413. The next prime is 31443014453. The reversal of 31443014422 is 22441034413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22441034413 = 7 ⋅3205862059.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7860753604 + ... + 7860753607.

It is an arithmetic number, because the mean of its divisors is an integer number (11791130409).

Almost surely, 2^31443014422 is an apocalyptic number.

31443014422 is a deficient number, since it is larger than the sum of its proper divisors (15721507214).

31443014422 is a wasteful number, since it uses less digits than its factorization.

31443014422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15721507213.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31443014422 its reverse (22441034413), we get a palindrome (53884048835).

The spelling of 31443014422 in words is "thirty-one billion, four hundred forty-three million, fourteen thousand, four hundred twenty-two".