20247552341531 has 2 divisors, whose sum is σ = 20247552341532. Its totient is φ = 20247552341530.

The previous prime is 20247552341503. The next prime is 20247552341593. The reversal of 20247552341531 is 13514325574202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20247552341531 - 2¹⁸ = 20247552079387 is a prime.

It is a super-2 number, since 2×20247552341531² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20247552391531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123776170765 + 10123776170766.

It is an arithmetic number, because the mean of its divisors is an integer number (10123776170766).

Almost surely, 2^{20247552341531} is an apocalyptic number.

20247552341531 is a deficient number, since it is larger than the sum of its proper divisors (1).

20247552341531 is an equidigital number, since it uses as much as digits as its factorization.

20247552341531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 20247552341531 in words is "twenty trillion, two hundred forty-seven billion, five hundred fifty-two million, three hundred forty-one thousand, five hundred thirty-one".