20120340202001 has 12 divisors (see below), whose sum is σ = 22651108607988. Its totient is φ = 17765116426464.

The previous prime is 20120340201967. The next prime is 20120340202057. The reversal of 20120340202001 is 10020204302102.

It can be written as a sum of positive squares in 2 ways, for example, as 779026890625 + 19341313311376 = 882625^2 + 4397876^2 .

It is not a de Polignac number, because 20120340202001 - 2¹⁰ = 20120340200977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120340204001) 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 11 ways as a sum of consecutive naturals, for example, 1462865030 + ... + 1462878783.

It is an arithmetic number, because the mean of its divisors is an integer number (1887592383999).

Almost surely, 2^{20120340202001} is an apocalyptic number.

It is an amenable number.

20120340202001 is a deficient number, since it is larger than the sum of its proper divisors (2530768405987).

20120340202001 is a wasteful number, since it uses less digits than its factorization.

20120340202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925743872 (or 2925743849 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20120340202001 its reverse (10020204302102), we get a palindrome (30140544504103).

The spelling of 20120340202001 in words is "twenty trillion, one hundred twenty billion, three hundred forty million, two hundred two thousand, one".