2135358272381 has 2 divisors, whose sum is σ = 2135358272382. Its totient is φ = 2135358272380.

The previous prime is 2135358272351. The next prime is 2135358272389. The reversal of 2135358272381 is 1832728535312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2073769923481 + 61588348900 = 1440059^2 + 248170^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135358272381 - 2³⁰ = 2134284530557 is a prime.

It is a super-2 number, since 2×2135358272381² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135358272389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067679136190 + 1067679136191.

It is an arithmetic number, because the mean of its divisors is an integer number (1067679136191).

Almost surely, 2^{2135358272381} is an apocalyptic number.

It is an amenable number.

2135358272381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135358272381 is an equidigital number, since it uses as much as digits as its factorization.

2135358272381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 50.

The spelling of 2135358272381 in words is "two trillion, one hundred thirty-five billion, three hundred fifty-eight million, two hundred seventy-two thousand, three hundred eighty-one".