1021002198053 has 2 divisors, whose sum is σ = 1021002198054. Its totient is φ = 1021002198052.

The previous prime is 1021002198031. The next prime is 1021002198077. The reversal of 1021002198053 is 3508912001201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1016937115489 + 4065082564 = 1008433^2 + 63758^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021002198053 - 2¹² = 1021002193957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021002198023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510501099026 + 510501099027.

It is an arithmetic number, because the mean of its divisors is an integer number (510501099027).

Almost surely, 2^{1021002198053} is an apocalyptic number.

It is an amenable number.

1021002198053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021002198053 is an equidigital number, since it uses as much as digits as its factorization.

1021002198053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 32.

Adding to 1021002198053 its reverse (3508912001201), we get a palindrome (4529914199254).

The spelling of 1021002198053 in words is "one trillion, twenty-one billion, two million, one hundred ninety-eight thousand, fifty-three".