20120342311 has 8 divisors (see below), whose sum is σ = 20176976160. Its totient is φ = 20063739168.

The previous prime is 20120342261. The next prime is 20120342317. The reversal of 20120342311 is 11324302102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20120342311 - 2¹³ = 20120334119 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 (20120342317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055150 + ... + 2064916.

It is an arithmetic number, because the mean of its divisors is an integer number (2522122020).

Almost surely, 2^20120342311 is an apocalyptic number.

20120342311 is a deficient number, since it is larger than the sum of its proper divisors (56633849).

20120342311 is an equidigital number, since it uses as much as digits as its factorization.

20120342311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15353.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20120342311 its reverse (11324302102), we get a palindrome (31444644413).

The spelling of 20120342311 in words is "twenty billion, one hundred twenty million, three hundred forty-two thousand, three hundred eleven".