120203240311013 has 2 divisors, whose sum is σ = 120203240311014. Its totient is φ = 120203240311012.

The previous prime is 120203240310973. The next prime is 120203240311019. The reversal of 120203240311013 is 310113042302021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69700073703649 + 50503166607364 = 8348657^2 + 7106558^2 .

It is a cyclic number.

It is not a de Polignac number, because 120203240311013 - 2³⁶ = 120134520834277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120203240311013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120203240311019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60101620155506 + 60101620155507.

It is an arithmetic number, because the mean of its divisors is an integer number (60101620155507).

Almost surely, 2^{120203240311013} is an apocalyptic number.

It is an amenable number.

120203240311013 is a deficient number, since it is larger than the sum of its proper divisors (1).

120203240311013 is an equidigital number, since it uses as much as digits as its factorization.

120203240311013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 120203240311013 its reverse (310113042302021), we get a palindrome (430316282613034).

The spelling of 120203240311013 in words is "one hundred twenty trillion, two hundred three billion, two hundred forty million, three hundred eleven thousand, thirteen".