40000312033 has 4 divisors (see below), whose sum is σ = 43636704048. Its totient is φ = 36363920020.

The previous prime is 40000312021. The next prime is 40000312073. The reversal of 40000312033 is 33021300004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40000312033 - 2⁹ = 40000311521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40000311998 and 40000312016.

It is not an unprimeable number, because it can be changed into a prime (40000312013) 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, 1818195991 + ... + 1818196012.

It is an arithmetic number, because the mean of its divisors is an integer number (10909176012).

Almost surely, 2^40000312033 is an apocalyptic number.

It is an amenable number.

40000312033 is a deficient number, since it is larger than the sum of its proper divisors (3636392015).

40000312033 is a wasteful number, since it uses less digits than its factorization.

40000312033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636392014.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 40000312033 its reverse (33021300004), we get a palindrome (73021612037).

The spelling of 40000312033 in words is "forty billion, three hundred twelve thousand, thirty-three".