2120211303137 has 2 divisors, whose sum is σ = 2120211303138. Its totient is φ = 2120211303136.

The previous prime is 2120211303097. The next prime is 2120211303163. The reversal of 2120211303137 is 7313031120212.

It is an a-pointer prime, because the next prime (2120211303163) can be obtained adding 2120211303137 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1683892927201 + 436318375936 = 1297649^2 + 660544^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120211303137 - 2²⁴ = 2120194525921 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120211303937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060105651568 + 1060105651569.

It is an arithmetic number, because the mean of its divisors is an integer number (1060105651569).

Almost surely, 2^{2120211303137} is an apocalyptic number.

It is an amenable number.

2120211303137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120211303137 is an equidigital number, since it uses as much as digits as its factorization.

2120211303137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 2120211303137 its reverse (7313031120212), we get a palindrome (9433242423349).

The spelling of 2120211303137 in words is "two trillion, one hundred twenty billion, two hundred eleven million, three hundred three thousand, one hundred thirty-seven".