1011020947 has 2 divisors, whose sum is σ = 1011020948. Its totient is φ = 1011020946.

The previous prime is 1011020929. The next prime is 1011020971. The reversal of 1011020947 is 7490201101.

1011020947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (7490201101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011020947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011020917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505510473 + 505510474.

It is an arithmetic number, because the mean of its divisors is an integer number (505510474).

Almost surely, 2^1011020947 is an apocalyptic number.

1011020947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011020947 is an equidigital number, since it uses as much as digits as its factorization.

1011020947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 1011020947 is about 31796.5555838993. Note that the first 4 decimals coincide. The cubic root of 1011020947 is about 1003.6602353315.

The spelling of 1011020947 in words is "one billion, eleven million, twenty thousand, nine hundred forty-seven".