20542753141 has 2 divisors, whose sum is σ = 20542753142. Its totient is φ = 20542753140.

The previous prime is 20542753109. The next prime is 20542753151. The reversal of 20542753141 is 14135724502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19584603025 + 958150116 = 139945^2 + 30954^2 .

It is a cyclic number.

It is not a de Polignac number, because 20542753141 - 2⁵ = 20542753109 is a prime.

It is a super-2 number, since 2×20542753141² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20542753097 and 20542753106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20542753151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10271376570 + 10271376571.

It is an arithmetic number, because the mean of its divisors is an integer number (10271376571).

Almost surely, 2^20542753141 is an apocalyptic number.

It is an amenable number.

20542753141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20542753141 is an equidigital number, since it uses as much as digits as its factorization.

20542753141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 20542753141 in words is "twenty billion, five hundred forty-two million, seven hundred fifty-three thousand, one hundred forty-one".