20003230961449 has 2 divisors, whose sum is σ = 20003230961450. Its totient is φ = 20003230961448.

The previous prime is 20003230961411. The next prime is 20003230961503. The reversal of 20003230961449 is 94416903230002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19974356455824 + 28874505625 = 4469268^2 + 169925^2 .

It is a cyclic number.

It is not a de Polignac number, because 20003230961449 - 2⁷ = 20003230961321 is a prime.

It is a super-3 number, since 3×20003230961449³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20003230901449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001615480724 + 10001615480725.

It is an arithmetic number, because the mean of its divisors is an integer number (10001615480725).

Almost surely, 2^{20003230961449} is an apocalyptic number.

It is an amenable number.

20003230961449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003230961449 is an equidigital number, since it uses as much as digits as its factorization.

20003230961449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 20003230961449 in words is "twenty trillion, three billion, two hundred thirty million, nine hundred sixty-one thousand, four hundred forty-nine".