40243020213 has 64 divisors (see below), whose sum is σ = 62638405632. Its totient is φ = 22736609280.

The previous prime is 40243020203. The next prime is 40243020227. The reversal of 40243020213 is 31202034204.

It is not a de Polignac number, because 40243020213 - 2⁴ = 40243020197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40243020213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243020203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18830481 + ... + 18832617.

It is an arithmetic number, because the mean of its divisors is an integer number (978725088).

Almost surely, 2^40243020213 is an apocalyptic number.

40243020213 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

40243020213 is a deficient number, since it is larger than the sum of its proper divisors (22395385419).

40243020213 is a wasteful number, since it uses less digits than its factorization.

40243020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40243020213 its reverse (31202034204), we get a palindrome (71445054417).

The spelling of 40243020213 in words is "forty billion, two hundred forty-three million, twenty thousand, two hundred thirteen".