1013202021289 has 2 divisors, whose sum is σ = 1013202021290. Its totient is φ = 1013202021288.

The previous prime is 1013202021277. The next prime is 1013202021361. The reversal of 1013202021289 is 9821202023101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1004589253264 + 8612768025 = 1002292^2 + 92805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013202021289 - 2²¹ = 1013199924137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1013202021289.

It is not a weakly prime, because it can be changed into another prime (1013202021089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506601010644 + 506601010645.

It is an arithmetic number, because the mean of its divisors is an integer number (506601010645).

Almost surely, 2^{1013202021289} is an apocalyptic number.

It is an amenable number.

1013202021289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013202021289 is an equidigital number, since it uses as much as digits as its factorization.

1013202021289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 1013202021289 in words is "one trillion, thirteen billion, two hundred two million, twenty-one thousand, two hundred eighty-nine".