20622616123 has 2 divisors, whose sum is σ = 20622616124. Its totient is φ = 20622616122.

The previous prime is 20622616103. The next prime is 20622616127. The reversal of 20622616123 is 32161622602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20622616123 is a prime.

It is a super-2 number, since 2×20622616123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20622616127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10311308061 + 10311308062.

It is an arithmetic number, because the mean of its divisors is an integer number (10311308062).

Almost surely, 2^20622616123 is an apocalyptic number.

20622616123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20622616123 is an equidigital number, since it uses as much as digits as its factorization.

20622616123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 20622616123 in words is "twenty billion, six hundred twenty-two million, six hundred sixteen thousand, one hundred twenty-three".