135233340344261 has 2 divisors, whose sum is σ = 135233340344262. Its totient is φ = 135233340344260.

The previous prime is 135233340344209. The next prime is 135233340344279. The reversal of 135233340344261 is 162443043332531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120541405348225 + 14691934996036 = 10979135^2 + 3833006^2 .

It is a cyclic number.

It is not a de Polignac number, because 135233340344261 - 2⁴² = 130835293833157 is a prime.

It is a super-2 number, since 2×135233340344261² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135233340340261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67616670172130 + 67616670172131.

It is an arithmetic number, because the mean of its divisors is an integer number (67616670172131).

Almost surely, 2^{135233340344261} is an apocalyptic number.

It is an amenable number.

135233340344261 is a deficient number, since it is larger than the sum of its proper divisors (1).

135233340344261 is an equidigital number, since it uses as much as digits as its factorization.

135233340344261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 44.

Adding to 135233340344261 its reverse (162443043332531), we get a palindrome (297676383676792).

The spelling of 135233340344261 in words is "one hundred thirty-five trillion, two hundred thirty-three billion, three hundred forty million, three hundred forty-four thousand, two hundred sixty-one".