20120350413137 has 16 divisors (see below), whose sum is σ = 21850279189200. Its totient is φ = 18416871985152.

The previous prime is 20120350413109. The next prime is 20120350413157. The reversal of 20120350413137 is 73131405302102.

It can be written as a sum of positive squares in 8 ways, for example, as 2195491194961 + 17924859218176 = 1481719^2 + 4233776^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120350413137 - 2¹² = 20120350409041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120350413157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7609688 + ... + 9906969.

It is an arithmetic number, because the mean of its divisors is an integer number (1365642449325).

Almost surely, 2^{20120350413137} is an apocalyptic number.

It is an amenable number.

20120350413137 is a deficient number, since it is larger than the sum of its proper divisors (1729928776063).

20120350413137 is a wasteful number, since it uses less digits than its factorization.

20120350413137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17517412.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 20120350413137 its reverse (73131405302102), we get a palindrome (93251755715239).

The spelling of 20120350413137 in words is "twenty trillion, one hundred twenty billion, three hundred fifty million, four hundred thirteen thousand, one hundred thirty-seven".