1023209680853 has 2 divisors, whose sum is σ = 1023209680854. Its totient is φ = 1023209680852.

The previous prime is 1023209680841. The next prime is 1023209680879. The reversal of 1023209680853 is 3580869023201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667304370769 + 355905310084 = 816887^2 + 596578^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023209680853 - 2¹⁰ = 1023209679829 is a prime.

It is a super-2 number, since 2×1023209680853² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1023209680798 and 1023209680807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023209610853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511604840426 + 511604840427.

It is an arithmetic number, because the mean of its divisors is an integer number (511604840427).

Almost surely, 2^{1023209680853} is an apocalyptic number.

It is an amenable number.

1023209680853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023209680853 is an equidigital number, since it uses as much as digits as its factorization.

1023209680853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 1023209680853 in words is "one trillion, twenty-three billion, two hundred nine million, six hundred eighty thousand, eight hundred fifty-three".