31041223123 has 16 divisors (see below), whose sum is σ = 32120323200. Its totient is φ = 29977902400.

The previous prime is 31041223063. The next prime is 31041223139. The reversal of 31041223123 is 32132214013.

It is a cyclic number.

It is not a de Polignac number, because 31041223123 - 2²⁹ = 30504352211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31041223094 and 31041223103.

It is not an unprimeable number, because it can be changed into a prime (31041233123) 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, 9206628 + ... + 9209998.

It is an arithmetic number, because the mean of its divisors is an integer number (2007520200).

Almost surely, 2^31041223123 is an apocalyptic number.

31041223123 is a deficient number, since it is larger than the sum of its proper divisors (1079100077).

31041223123 is a wasteful number, since it uses less digits than its factorization.

31041223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31041223123 its reverse (32132214013), we get a palindrome (63173437136).

The spelling of 31041223123 in words is "thirty-one billion, forty-one million, two hundred twenty-three thousand, one hundred twenty-three".