2355121046309 has 2 divisors, whose sum is σ = 2355121046310. Its totient is φ = 2355121046308.

The previous prime is 2355121046297. The next prime is 2355121046353. The reversal of 2355121046309 is 9036401215532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2189734050625 + 165386995684 = 1479775^2 + 406678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2355121046309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2355121043309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177560523154 + 1177560523155.

It is an arithmetic number, because the mean of its divisors is an integer number (1177560523155).

Almost surely, 2^{2355121046309} is an apocalyptic number.

It is an amenable number.

2355121046309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2355121046309 is an equidigital number, since it uses as much as digits as its factorization.

2355121046309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 41.

It can be divided in two parts, 235512 and 1046309, that added together give a palindrome (1281821).

The spelling of 2355121046309 in words is "two trillion, three hundred fifty-five billion, one hundred twenty-one million, forty-six thousand, three hundred nine".