2100003231947 has 2 divisors, whose sum is σ = 2100003231948. Its totient is φ = 2100003231946.

The previous prime is 2100003231827. The next prime is 2100003231983. The reversal of 2100003231947 is 7491323000012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100003231947 - 2³⁶ = 2031283755211 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100003231647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050001615973 + 1050001615974.

It is an arithmetic number, because the mean of its divisors is an integer number (1050001615974).

Almost surely, 2^{2100003231947} is an apocalyptic number.

2100003231947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100003231947 is an equidigital number, since it uses as much as digits as its factorization.

2100003231947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 2100003231947 its reverse (7491323000012), we get a palindrome (9591326231959).

The spelling of 2100003231947 in words is "two trillion, one hundred billion, three million, two hundred thirty-one thousand, nine hundred forty-seven".