1021248518097 has 8 divisors (see below), whose sum is σ = 1441762613856. Its totient is φ = 640783383872.

The previous prime is 1021248518083. The next prime is 1021248518117. The reversal of 1021248518097 is 7908158421201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021248518097 - 2⁷ = 1021248517969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021248518027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10012240323 + ... + 10012240424.

It is an arithmetic number, because the mean of its divisors is an integer number (180220326732).

Almost surely, 2^{1021248518097} is an apocalyptic number.

1021248518097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1021248518097 is a deficient number, since it is larger than the sum of its proper divisors (420514095759).

1021248518097 is a wasteful number, since it uses less digits than its factorization.

1021248518097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20024480767.

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 1021248518097 in words is "one trillion, twenty-one billion, two hundred forty-eight million, five hundred eighteen thousand, ninety-seven".