2135522102377 has 2 divisors, whose sum is σ = 2135522102378. Its totient is φ = 2135522102376.

The previous prime is 2135522102339. The next prime is 2135522102381. The reversal of 2135522102377 is 7732012255312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2133150801961 + 2371300416 = 1460531^2 + 48696^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135522102377 - 2³⁹ = 1585766288489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2135522109377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067761051188 + 1067761051189.

It is an arithmetic number, because the mean of its divisors is an integer number (1067761051189).

Almost surely, 2^{2135522102377} is an apocalyptic number.

It is an amenable number.

2135522102377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135522102377 is an equidigital number, since it uses as much as digits as its factorization.

2135522102377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 40.

Adding to 2135522102377 its reverse (7732012255312), we get a palindrome (9867534357689).

The spelling of 2135522102377 in words is "two trillion, one hundred thirty-five billion, five hundred twenty-two million, one hundred two thousand, three hundred seventy-seven".