20124322087 has 2 divisors, whose sum is σ = 20124322088. Its totient is φ = 20124322086.

The previous prime is 20124322079. The next prime is 20124322109. The reversal of 20124322087 is 78022342102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20124322087 - 2³ = 20124322079 is a prime.

It is a super-2 number, since 2×20124322087² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20124322007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062161043 + 10062161044.

It is an arithmetic number, because the mean of its divisors is an integer number (10062161044).

Almost surely, 2^20124322087 is an apocalyptic number.

20124322087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124322087 is an equidigital number, since it uses as much as digits as its factorization.

20124322087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

Adding to 20124322087 its reverse (78022342102), we get a palindrome (98146664189).

The spelling of 20124322087 in words is "twenty billion, one hundred twenty-four million, three hundred twenty-two thousand, eighty-seven".