40015312211 has 4 divisors (see below), whose sum is σ = 45731785392. Its totient is φ = 34298839032.

The previous prime is 40015312199. The next prime is 40015312297. The reversal of 40015312211 is 11221351004.

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-40015312211 is a prime.

It is a super-2 number, since 2×40015312211² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40015315211) 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, 2858236580 + ... + 2858236593.

It is an arithmetic number, because the mean of its divisors is an integer number (11432946348).

Almost surely, 2^40015312211 is an apocalyptic number.

40015312211 is a deficient number, since it is larger than the sum of its proper divisors (5716473181).

40015312211 is an equidigital number, since it uses as much as digits as its factorization.

40015312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5716473180.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 40015312211 its reverse (11221351004), we get a palindrome (51236663215).

The spelling of 40015312211 in words is "forty billion, fifteen million, three hundred twelve thousand, two hundred eleven".