20203353386651 has 2 divisors, whose sum is σ = 20203353386652. Its totient is φ = 20203353386650.

The previous prime is 20203353386581. The next prime is 20203353386731. The reversal of 20203353386651 is 15668335330202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20203353386651 - 2²² = 20203349192347 is a prime.

It is a super-2 number, since 2×20203353386651² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20203353386596 and 20203353386605.

It is not a weakly prime, because it can be changed into another prime (20203353386351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101676693325 + 10101676693326.

It is an arithmetic number, because the mean of its divisors is an integer number (10101676693326).

Almost surely, 2^{20203353386651} is an apocalyptic number.

20203353386651 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203353386651 is an equidigital number, since it uses as much as digits as its factorization.

20203353386651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 20203353386651 in words is "twenty trillion, two hundred three billion, three hundred fifty-three million, three hundred eighty-six thousand, six hundred fifty-one".