20116310243461 has 2 divisors, whose sum is σ = 20116310243462. Its totient is φ = 20116310243460.

The previous prime is 20116310243459. The next prime is 20116310243473. The reversal of 20116310243461 is 16434201361102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11655949074561 + 8460361168900 = 3414081^2 + 2908670^2 .

It is a cyclic number.

It is not a de Polignac number, because 20116310243461 - 2¹ = 20116310243459 is a prime.

It is a super-2 number, since 2×20116310243461² (a number of 27 digits) contains 22 as substring.

Together with 20116310243459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20116310243411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058155121730 + 10058155121731.

It is an arithmetic number, because the mean of its divisors is an integer number (10058155121731).

Almost surely, 2^{20116310243461} is an apocalyptic number.

It is an amenable number.

20116310243461 is a deficient number, since it is larger than the sum of its proper divisors (1).

20116310243461 is an equidigital number, since it uses as much as digits as its factorization.

20116310243461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 20116310243461 in words is "twenty trillion, one hundred sixteen billion, three hundred ten million, two hundred forty-three thousand, four hundred sixty-one".