31423044011 has 4 divisors (see below), whose sum is σ = 32436690624. Its totient is φ = 30409397400.

The previous prime is 31423043959. The next prime is 31423044017. The reversal of 31423044011 is 11044032413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11044032413 = 2393 ⋅4615141.

It is a cyclic number.

It is not a de Polignac number, because 31423044011 - 2¹⁴ = 31423027627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31423044017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506823260 + ... + 506823321.

It is an arithmetic number, because the mean of its divisors is an integer number (8109172656).

Almost surely, 2^31423044011 is an apocalyptic number.

31423044011 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31423044011 is a deficient number, since it is larger than the sum of its proper divisors (1013646613).

31423044011 is a wasteful number, since it uses less digits than its factorization.

31423044011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013646612.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31423044011 its reverse (11044032413), we get a palindrome (42467076424).

The spelling of 31423044011 in words is "thirty-one billion, four hundred twenty-three million, forty-four thousand, eleven".