20041577323511 has 2 divisors, whose sum is σ = 20041577323512. Its totient is φ = 20041577323510.

The previous prime is 20041577323487. The next prime is 20041577323561. The reversal of 20041577323511 is 11532377514002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20041577323511 - 2⁶ = 20041577323447 is a prime.

It is a super-2 number, since 2×20041577323511² (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 (20041577323561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020788661755 + 10020788661756.

It is an arithmetic number, because the mean of its divisors is an integer number (10020788661756).

Almost surely, 2^{20041577323511} is an apocalyptic number.

20041577323511 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041577323511 is an equidigital number, since it uses as much as digits as its factorization.

20041577323511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 20041577323511 in words is "twenty trillion, forty-one billion, five hundred seventy-seven million, three hundred twenty-three thousand, five hundred eleven".