31122201103 has 8 divisors (see below), whose sum is σ = 35590940672. Its totient is φ = 26659139256.

The previous prime is 31122201029. The next prime is 31122201109. The reversal of 31122201103 is 30110222113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31122201103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122201109) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1407675 + ... + 1429612.

It is an arithmetic number, because the mean of its divisors is an integer number (4448867584).

Almost surely, 2^31122201103 is an apocalyptic number.

31122201103 is a deficient number, since it is larger than the sum of its proper divisors (4468739569).

31122201103 is a wasteful number, since it uses less digits than its factorization.

31122201103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838861.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31122201103 its reverse (30110222113), we get a palindrome (61232423216).

The spelling of 31122201103 in words is "thirty-one billion, one hundred twenty-two million, two hundred one thousand, one hundred three".