2120104656136 has 32 divisors (see below), whose sum is σ = 4024880244000. Its totient is φ = 1046814624000.

The previous prime is 2120104656119. The next prime is 2120104656193. The reversal of 2120104656136 is 6316564010212.

It is a junction number, because it is equal to n+sod(n) for n = 2120104656095 and 2120104656104.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 785440 + ... + 2203888.

It is an arithmetic number, because the mean of its divisors is an integer number (125777507625).

Almost surely, 2^{2120104656136} is an apocalyptic number.

It is an amenable number.

2120104656136 is a deficient number, since it is larger than the sum of its proper divisors (1904775587864).

2120104656136 is a wasteful number, since it uses less digits than its factorization.

2120104656136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420789 (or 1420785 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 2120104656136 its reverse (6316564010212), we get a palindrome (8436668666348).

The spelling of 2120104656136 in words is "two trillion, one hundred twenty billion, one hundred four million, six hundred fifty-six thousand, one hundred thirty-six".