40205402113 has 4 divisors (see below), whose sum is σ = 40210753968. Its totient is φ = 40200050260.

The previous prime is 40205402071. The next prime is 40205402119. The reversal of 40205402113 is 31120450204.

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 a de Polignac number, because none of the positive numbers 2^k-40205402113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40205402119) 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, 2664643 + ... + 2679688.

It is an arithmetic number, because the mean of its divisors is an integer number (10052688492).

Almost surely, 2^40205402113 is an apocalyptic number.

It is an amenable number.

40205402113 is a deficient number, since it is larger than the sum of its proper divisors (5351855).

40205402113 is an equidigital number, since it uses as much as digits as its factorization.

40205402113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351854.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 40205402113 its reverse (31120450204), we get a palindrome (71325852317).

The spelling of 40205402113 in words is "forty billion, two hundred five million, four hundred two thousand, one hundred thirteen".