40120430241013 has 4 divisors (see below), whose sum is σ = 40120815788620. Its totient is φ = 40120044693408.

The previous prime is 40120430241007. The next prime is 40120430241029. The reversal of 40120430241013 is 31014203402104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19457432679364 + 20662997561649 = 4411058^2 + 4545657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40120430241013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120430241053) 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, 192617670 + ... + 192825847.

It is an arithmetic number, because the mean of its divisors is an integer number (10030203947155).

Almost surely, 2^{40120430241013} is an apocalyptic number.

It is an amenable number.

40120430241013 is a deficient number, since it is larger than the sum of its proper divisors (385547607).

40120430241013 is a wasteful number, since it uses less digits than its factorization.

40120430241013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385547606.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 40120430241013 its reverse (31014203402104), we get a palindrome (71134633643117).

The spelling of 40120430241013 in words is "forty trillion, one hundred twenty billion, four hundred thirty million, two hundred forty-one thousand, thirteen".