20247437250631 has 2 divisors, whose sum is σ = 20247437250632. Its totient is φ = 20247437250630.

The previous prime is 20247437250619. The next prime is 20247437250643. The reversal of 20247437250631 is 13605273474202.

It is a balanced prime because it is at equal distance from previous prime (20247437250619) and next prime (20247437250643).

It is a cyclic number.

It is not a de Polignac number, because 20247437250631 - 2¹⁹ = 20247436726343 is a prime.

It is a super-2 number, since 2×20247437250631² (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 (20247437250331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123718625315 + 10123718625316.

It is an arithmetic number, because the mean of its divisors is an integer number (10123718625316).

Almost surely, 2^{20247437250631} is an apocalyptic number.

20247437250631 is a deficient number, since it is larger than the sum of its proper divisors (1).

20247437250631 is an equidigital number, since it uses as much as digits as its factorization.

20247437250631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 20247437250631 in words is "twenty trillion, two hundred forty-seven billion, four hundred thirty-seven million, two hundred fifty thousand, six hundred thirty-one".