31100434423 has 16 divisors (see below), whose sum is σ = 34580537280. Its totient is φ = 27819956736.

The previous prime is 31100434399. The next prime is 31100434439. The reversal of 31100434423 is 32443400113.

It is a cyclic number.

It is not a de Polignac number, because 31100434423 - 2⁹ = 31100433911 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 (31100434493) 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, 191928 + ... + 314701.

It is an arithmetic number, because the mean of its divisors is an integer number (2161283580).

Almost surely, 2^31100434423 is an apocalyptic number.

31100434423 is a deficient number, since it is larger than the sum of its proper divisors (3480102857).

31100434423 is a wasteful number, since it uses less digits than its factorization.

31100434423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506826.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31100434423 its reverse (32443400113), we get a palindrome (63543834536).

The spelling of 31100434423 in words is "thirty-one billion, one hundred million, four hundred thirty-four thousand, four hundred twenty-three".