20043498953 has 2 divisors, whose sum is σ = 20043498954. Its totient is φ = 20043498952.

The previous prime is 20043498949. The next prime is 20043498997. The reversal of 20043498953 is 35989434002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11601013264 + 8442485689 = 107708^2 + 91883^2 .

It is a cyclic number.

It is not a de Polignac number, because 20043498953 - 2² = 20043498949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20043498898 and 20043498907.

It is not a weakly prime, because it can be changed into another prime (20043498053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021749476 + 10021749477.

It is an arithmetic number, because the mean of its divisors is an integer number (10021749477).

Almost surely, 2^20043498953 is an apocalyptic number.

It is an amenable number.

20043498953 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043498953 is an equidigital number, since it uses as much as digits as its factorization.

20043498953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 20043498953 in words is "twenty billion, forty-three million, four hundred ninety-eight thousand, nine hundred fifty-three".