10203031119949 has 2 divisors, whose sum is σ = 10203031119950. Its totient is φ = 10203031119948.

The previous prime is 10203031119947. The next prime is 10203031120021. The reversal of 10203031119949 is 94991113030201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9076210655625 + 1126820464324 = 3012675^2 + 1061518^2 .

It is an emirp because it is prime and its reverse (94991113030201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10203031119949 - 2¹ = 10203031119947 is a prime.

Together with 10203031119947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10203031119947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101515559974 + 5101515559975.

It is an arithmetic number, because the mean of its divisors is an integer number (5101515559975).

Almost surely, 2^{10203031119949} is an apocalyptic number.

It is an amenable number.

10203031119949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203031119949 is an equidigital number, since it uses as much as digits as its factorization.

10203031119949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 43.

The spelling of 10203031119949 in words is "ten trillion, two hundred three billion, thirty-one million, one hundred nineteen thousand, nine hundred forty-nine".