40312120223 has 4 divisors (see below), whose sum is σ = 40559434008. Its totient is φ = 40064806440.

The previous prime is 40312120207. The next prime is 40312120259. The reversal of 40312120223 is 32202121304.

40312120223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40312120223 - 2⁴ = 40312120207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40312120195 and 40312120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40312420223) 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, 123656648 + ... + 123656973.

It is an arithmetic number, because the mean of its divisors is an integer number (10139858502).

Almost surely, 2^40312120223 is an apocalyptic number.

40312120223 is a deficient number, since it is larger than the sum of its proper divisors (247313785).

40312120223 is a wasteful number, since it uses less digits than its factorization.

40312120223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247313784.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40312120223 its reverse (32202121304), we get a palindrome (72514241527).

The spelling of 40312120223 in words is "forty billion, three hundred twelve million, one hundred twenty thousand, two hundred twenty-three".