1020700551539 has 2 divisors, whose sum is σ = 1020700551540. Its totient is φ = 1020700551538.

The previous prime is 1020700551511. The next prime is 1020700551583. The reversal of 1020700551539 is 9351550070201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020700551539 - 2²⁸ = 1020432116083 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020700551599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510350275769 + 510350275770.

It is an arithmetic number, because the mean of its divisors is an integer number (510350275770).

Almost surely, 2^{1020700551539} is an apocalyptic number.

1020700551539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020700551539 is an equidigital number, since it uses as much as digits as its factorization.

1020700551539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47250, while the sum is 38.

The spelling of 1020700551539 in words is "one trillion, twenty billion, seven hundred million, five hundred fifty-one thousand, five hundred thirty-nine".