2001453563353 has 2 divisors, whose sum is σ = 2001453563354. Its totient is φ = 2001453563352.

The previous prime is 2001453563321. The next prime is 2001453563357. The reversal of 2001453563353 is 3533653541002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2001410042944 + 43520409 = 1414712^2 + 6597^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001453563353 - 2⁵ = 2001453563321 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001453563357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000726781676 + 1000726781677.

It is an arithmetic number, because the mean of its divisors is an integer number (1000726781677).

Almost surely, 2^{2001453563353} is an apocalyptic number.

It is an amenable number.

2001453563353 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001453563353 is an equidigital number, since it uses as much as digits as its factorization.

2001453563353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 40.

It can be divided in two parts, 2001 and 453563353, that added together give a palindrome (453565354).

The spelling of 2001453563353 in words is "two trillion, one billion, four hundred fifty-three million, five hundred sixty-three thousand, three hundred fifty-three".