10203303021949 has 2 divisors, whose sum is σ = 10203303021950. Its totient is φ = 10203303021948.

The previous prime is 10203303021941. The next prime is 10203303022019. The reversal of 10203303021949 is 94912030330201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6003078213924 + 4200224808025 = 2450118^2 + 2049445^2 .

It is a cyclic number.

It is not a de Polignac number, because 10203303021949 - 2³ = 10203303021941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10203303021941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101651510974 + 5101651510975.

It is an arithmetic number, because the mean of its divisors is an integer number (5101651510975).

Almost surely, 2^{10203303021949} is an apocalyptic number.

It is an amenable number.

10203303021949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203303021949 is an equidigital number, since it uses as much as digits as its factorization.

10203303021949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 10203303021949 in words is "ten trillion, two hundred three billion, three hundred three million, twenty-one thousand, nine hundred forty-nine".