31144011200023 has 4 divisors (see below), whose sum is σ = 31145436511848. Its totient is φ = 31142585888200.

The previous prime is 31144011199997. The next prime is 31144011200069. The reversal of 31144011200023 is 32000211044113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31144011200023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31144011199967 and 31144011200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31144011200723) 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, 712623136 + ... + 712666837.

It is an arithmetic number, because the mean of its divisors is an integer number (7786359127962).

Almost surely, 2^{31144011200023} is an apocalyptic number.

31144011200023 is a deficient number, since it is larger than the sum of its proper divisors (1425311825).

31144011200023 is a wasteful number, since it uses less digits than its factorization.

31144011200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425311824.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31144011200023 its reverse (32000211044113), we get a palindrome (63144222244136).

The spelling of 31144011200023 in words is "thirty-one trillion, one hundred forty-four billion, eleven million, two hundred thousand, twenty-three".