1021119973 has 2 divisors, whose sum is σ = 1021119974. Its totient is φ = 1021119972.

The previous prime is 1021119971. The next prime is 1021120013. The reversal of 1021119973 is 3799111201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845239329 + 175880644 = 29073^2 + 13262^2 .

It is an emirp because it is prime and its reverse (3799111201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1021119973 - 2¹ = 1021119971 is a prime.

Together with 1021119971, 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 (1021119971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510559986 + 510559987.

It is an arithmetic number, because the mean of its divisors is an integer number (510559987).

Almost surely, 2^1021119973 is an apocalyptic number.

It is an amenable number.

1021119973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021119973 is an equidigital number, since it uses as much as digits as its factorization.

1021119973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 1021119973 is about 31954.9678923325. The cubic root of 1021119973 is about 1006.9910029842.

The spelling of 1021119973 in words is "one billion, twenty-one million, one hundred nineteen thousand, nine hundred seventy-three".