31312210103 has 8 divisors (see below), whose sum is σ = 31455518160. Its totient is φ = 31169013120.

The previous prime is 31312210093. The next prime is 31312210117. The reversal of 31312210103 is 30101221313.

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

It is a cyclic number.

It is not a de Polignac number, because 31312210103 - 2⁸ = 31312209847 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 (31312210123) 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, 566201 + ... + 619037.

It is an arithmetic number, because the mean of its divisors is an integer number (3931939770).

Almost surely, 2^31312210103 is an apocalyptic number.

31312210103 is a deficient number, since it is larger than the sum of its proper divisors (143308057).

31312210103 is a wasteful number, since it uses less digits than its factorization.

31312210103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55537.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31312210103 its reverse (30101221313), we get a palindrome (61413431416).

The spelling of 31312210103 in words is "thirty-one billion, three hundred twelve million, two hundred ten thousand, one hundred three".