2120304137011 has 4 divisors (see below), whose sum is σ = 2193418072800. Its totient is φ = 2047190201224.

The previous prime is 2120304136961. The next prime is 2120304137027. The reversal of 2120304137011 is 1107314030212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120304137011 is a prime.

It is a super-2 number, since 2×2120304137011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120304167011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36556967851 + ... + 36556967908.

It is an arithmetic number, because the mean of its divisors is an integer number (548354518200).

Almost surely, 2^{2120304137011} is an apocalyptic number.

2120304137011 is a deficient number, since it is larger than the sum of its proper divisors (73113935789).

2120304137011 is an equidigital number, since it uses as much as digits as its factorization.

2120304137011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73113935788.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 2120304137011 its reverse (1107314030212), we get a palindrome (3227618167223).

The spelling of 2120304137011 in words is "two trillion, one hundred twenty billion, three hundred four million, one hundred thirty-seven thousand, eleven".