20540654070031 has 2 divisors, whose sum is σ = 20540654070032. Its totient is φ = 20540654070030.

The previous prime is 20540654069987. The next prime is 20540654070043. The reversal of 20540654070031 is 13007045604502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20540654070031 - 2¹⁹ = 20540653545743 is a prime.

It is a super-2 number, since 2×20540654070031² (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 (20540654079031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270327035015 + 10270327035016.

It is an arithmetic number, because the mean of its divisors is an integer number (10270327035016).

Almost surely, 2^{20540654070031} is an apocalyptic number.

20540654070031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20540654070031 is an equidigital number, since it uses as much as digits as its factorization.

20540654070031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 37.

Adding to 20540654070031 its reverse (13007045604502), we get a palindrome (33547699674533).

The spelling of 20540654070031 in words is "twenty trillion, five hundred forty billion, six hundred fifty-four million, seventy thousand, thirty-one".