31100000422 has 4 divisors (see below), whose sum is σ = 46650000636. Its totient is φ = 15550000210.

The previous prime is 31100000383. The next prime is 31100000471. The reversal of 31100000422 is 22400000113.

It is a semiprime because it is the product of two 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 as a sum of consecutive naturals, namely, 7775000104 + ... + 7775000107.

It is an arithmetic number, because the mean of its divisors is an integer number (11662500159).

Almost surely, 2^31100000422 is an apocalyptic number.

31100000422 is a deficient number, since it is larger than the sum of its proper divisors (15550000214).

31100000422 is a wasteful number, since it uses less digits than its factorization.

31100000422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15550000213.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 31100000422 its reverse (22400000113), we get a palindrome (53500000535).

The spelling of 31100000422 in words is "thirty-one billion, one hundred million, four hundred twenty-two", and thus it is an aban number.