1121010020947 has 2 divisors, whose sum is σ = 1121010020948. Its totient is φ = 1121010020946.

The previous prime is 1121010020939. The next prime is 1121010021097. The reversal of 1121010020947 is 7490200101211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121010020947 - 2³ = 1121010020939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121010020917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560505010473 + 560505010474.

It is an arithmetic number, because the mean of its divisors is an integer number (560505010474).

Almost surely, 2^{1121010020947} is an apocalyptic number.

1121010020947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121010020947 is an equidigital number, since it uses as much as digits as its factorization.

1121010020947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 1121010020947 in words is "one trillion, one hundred twenty-one billion, ten million, twenty thousand, nine hundred forty-seven".