31322213121103 has 4 divisors (see below), whose sum is σ = 31322384676088. Its totient is φ = 31322041566120.

The previous prime is 31322213121097. The next prime is 31322213121211. The reversal of 31322213121103 is 30112131222313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31322213121103 - 2⁹ = 31322213120591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322213121403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85503333 + ... + 85868878.

It is an arithmetic number, because the mean of its divisors is an integer number (7830596169022).

Almost surely, 2^{31322213121103} is an apocalyptic number.

31322213121103 is a deficient number, since it is larger than the sum of its proper divisors (171554985).

31322213121103 is a wasteful number, since it uses less digits than its factorization.

31322213121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171554984.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31322213121103 its reverse (30112131222313), we get a palindrome (61434344343416).

The spelling of 31322213121103 in words is "thirty-one trillion, three hundred twenty-two billion, two hundred thirteen million, one hundred twenty-one thousand, one hundred three".