20361313356511 has 2 divisors, whose sum is σ = 20361313356512. Its totient is φ = 20361313356510.

The previous prime is 20361313356473. The next prime is 20361313356539. The reversal of 20361313356511 is 11565331316302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20361313356511 - 2⁴¹ = 18162290100959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20361313456511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10180656678255 + 10180656678256.

It is an arithmetic number, because the mean of its divisors is an integer number (10180656678256).

Almost surely, 2^{20361313356511} is an apocalyptic number.

20361313356511 is a deficient number, since it is larger than the sum of its proper divisors (1).

20361313356511 is an equidigital number, since it uses as much as digits as its factorization.

20361313356511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 40.

The spelling of 20361313356511 in words is "twenty trillion, three hundred sixty-one billion, three hundred thirteen million, three hundred fifty-six thousand, five hundred eleven".