2120304136887 has 48 divisors (see below), whose sum is σ = 3245402160000. Its totient is φ = 1330194146112.

The previous prime is 2120304136829. The next prime is 2120304136931. The reversal of 2120304136887 is 7886314030212.

2120304136887 is a `hidden beast` number, since 2 + 1 + 203 + 0 + 4 + 1 + 368 + 87 = 666.

It is not a de Polignac number, because 2120304136887 - 2⁶ = 2120304136823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120304136787) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101444364 + ... + 101465262.

It is an arithmetic number, because the mean of its divisors is an integer number (67612545000).

Almost surely, 2^{2120304136887} is an apocalyptic number.

2120304136887 is a deficient number, since it is larger than the sum of its proper divisors (1125098023113).

2120304136887 is a wasteful number, since it uses less digits than its factorization.

2120304136887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24860 (or 24857 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 2120304136887 in words is "two trillion, one hundred twenty billion, three hundred four million, one hundred thirty-six thousand, eight hundred eighty-seven".