31155122232103 has 8 divisors (see below), whose sum is σ = 31674474043200. Its totient is φ = 30636048230880.

The previous prime is 31155122232079. The next prime is 31155122232107. The reversal of 31155122232103 is 30123222155113.

It is a happy number.

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-31155122232103 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 (31155122232107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69226303 + ... + 69674896.

It is an arithmetic number, because the mean of its divisors is an integer number (3959309255400).

Almost surely, 2^{31155122232103} is an apocalyptic number.

31155122232103 is a deficient number, since it is larger than the sum of its proper divisors (519351811097).

31155122232103 is a wasteful number, since it uses less digits than its factorization.

31155122232103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138904937.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 31155122232103 its reverse (30123222155113), we get a palindrome (61278344387216).

The spelling of 31155122232103 in words is "thirty-one trillion, one hundred fifty-five billion, one hundred twenty-two million, two hundred thirty-two thousand, one hundred three".