40503445231 has 4 divisors (see below), whose sum is σ = 40592074672. Its totient is φ = 40414815792.

The previous prime is 40503445223. The next prime is 40503445249. The reversal of 40503445231 is 13254430504.

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 40503445231 - 2³ = 40503445223 is a prime.

It is a super-2 number, since 2×40503445231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40503445193 and 40503445202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40503445831) 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, 44314035 + ... + 44314948.

It is an arithmetic number, because the mean of its divisors is an integer number (10148018668).

Almost surely, 2^40503445231 is an apocalyptic number.

40503445231 is a deficient number, since it is larger than the sum of its proper divisors (88629441).

40503445231 is an equidigital number, since it uses as much as digits as its factorization.

40503445231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88629440.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 40503445231 its reverse (13254430504), we get a palindrome (53757875735).

The spelling of 40503445231 in words is "forty billion, five hundred three million, four hundred forty-five thousand, two hundred thirty-one".