20954450037203 has 2 divisors, whose sum is σ = 20954450037204. Its totient is φ = 20954450037202.

The previous prime is 20954450037197. The next prime is 20954450037317. The reversal of 20954450037203 is 30273005445902.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20954450037203 is a prime.

It is not a weakly prime, because it can be changed into another prime (20954450037503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10477225018601 + 10477225018602.

It is an arithmetic number, because the mean of its divisors is an integer number (10477225018602).

Almost surely, 2^{20954450037203} is an apocalyptic number.

20954450037203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20954450037203 is an equidigital number, since it uses as much as digits as its factorization.

20954450037203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 20954450037203 in words is "twenty trillion, nine hundred fifty-four billion, four hundred fifty million, thirty-seven thousand, two hundred three".