40531033011 has 16 divisors (see below), whose sum is σ = 63022016000. Its totient is φ = 23160589704.

The previous prime is 40531033003. The next prime is 40531033019. The reversal of 40531033011 is 11033013504.

It is an interprime number because it is at equal distance from previous prime (40531033003) and next prime (40531033019).

It is not a de Polignac number, because 40531033011 - 2³ = 40531033003 is a prime.

It is a super-2 number, since 2×40531033011² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40531033019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19693351 + ... + 19695408.

It is an arithmetic number, because the mean of its divisors is an integer number (3938876000).

Almost surely, 2^40531033011 is an apocalyptic number.

40531033011 is a deficient number, since it is larger than the sum of its proper divisors (22490982989).

40531033011 is an equidigital number, since it uses as much as digits as its factorization.

40531033011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39388783 (or 39388769 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 40531033011 its reverse (11033013504), we get a palindrome (51564046515).

The spelling of 40531033011 in words is "forty billion, five hundred thirty-one million, thirty-three thousand, eleven".