361507136021 has 2 divisors, whose sum is σ = 361507136022. Its totient is φ = 361507136020.

The previous prime is 361507135993. The next prime is 361507136113. The reversal of 361507136021 is 120631705163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315378835396 + 46128300625 = 561586^2 + 214775^2 .

It is an emirp because it is prime and its reverse (120631705163) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361507136021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361507136521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180753568010 + 180753568011.

It is an arithmetic number, because the mean of its divisors is an integer number (180753568011).

Almost surely, 2^361507136021 is an apocalyptic number.

It is an amenable number.

361507136021 is a deficient number, since it is larger than the sum of its proper divisors (1).

361507136021 is an equidigital number, since it uses as much as digits as its factorization.

361507136021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 361507136021 in words is "three hundred sixty-one billion, five hundred seven million, one hundred thirty-six thousand, twenty-one".