31100000131223 has 16 divisors (see below), whose sum is σ = 31591311360000. Its totient is φ = 30611171197152.

The previous prime is 31100000131201. The next prime is 31100000131231. The reversal of 31100000131223 is 32213100000113.

It is a cyclic number.

It is not a de Polignac number, because 31100000131223 - 2⁸ = 31100000130967 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 (31100000139223) 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, 119500586 + ... + 119760552.

It is an arithmetic number, because the mean of its divisors is an integer number (1974456960000).

Almost surely, 2^{31100000131223} is an apocalyptic number.

31100000131223 is a deficient number, since it is larger than the sum of its proper divisors (491311228777).

31100000131223 is a wasteful number, since it uses less digits than its factorization.

31100000131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264734.

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

Adding to 31100000131223 its reverse (32213100000113), we get a palindrome (63313100131336).

The spelling of 31100000131223 in words is "thirty-one trillion, one hundred billion, one hundred thirty-one thousand, two hundred twenty-three".