20461322346349 has 2 divisors, whose sum is σ = 20461322346350. Its totient is φ = 20461322346348.

The previous prime is 20461322346107. The next prime is 20461322346359. The reversal of 20461322346349 is 94364322316402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18024117412324 + 2437204934025 = 4245482^2 + 1561155^2 .

It is a cyclic number.

It is not a de Polignac number, because 20461322346349 - 2²⁵ = 20461288791917 is a prime.

It is a super-2 number, since 2×20461322346349² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20461322346359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230661173174 + 10230661173175.

It is an arithmetic number, because the mean of its divisors is an integer number (10230661173175).

Almost surely, 2^{20461322346349} is an apocalyptic number.

It is an amenable number.

20461322346349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20461322346349 is an equidigital number, since it uses as much as digits as its factorization.

20461322346349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 49.

The spelling of 20461322346349 in words is "twenty trillion, four hundred sixty-one billion, three hundred twenty-two million, three hundred forty-six thousand, three hundred forty-nine".