31223032312101 has 16 divisors (see below), whose sum is σ = 47594928029184. Its totient is φ = 17835367488624.

The previous prime is 31223032312097. The next prime is 31223032312117. The reversal of 31223032312101 is 10121323032213.

It is not a de Polignac number, because 31223032312101 - 2² = 31223032312097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31223032312201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265158951 + ... + 265276676.

It is an arithmetic number, because the mean of its divisors is an integer number (2974683001824).

Almost surely, 2^{31223032312101} is an apocalyptic number.

It is an amenable number.

31223032312101 is a deficient number, since it is larger than the sum of its proper divisors (16371895717083).

31223032312101 is a wasteful number, since it uses less digits than its factorization.

31223032312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530438440.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31223032312101 its reverse (10121323032213), we get a palindrome (41344355344314).

The spelling of 31223032312101 in words is "thirty-one trillion, two hundred twenty-three billion, thirty-two million, three hundred twelve thousand, one hundred one".