1020280703123 has 16 divisors (see below), whose sum is σ = 1123295580000. Its totient is φ = 918982202880.

The previous prime is 1020280703093. The next prime is 1020280703131. The reversal of 1020280703123 is 3213070820201.

It is a cyclic number.

It is not a de Polignac number, because 1020280703123 - 2¹⁶ = 1020280637587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020280702123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3267713 + ... + 3566301.

It is an arithmetic number, because the mean of its divisors is an integer number (70205973750).

Almost surely, 2^{1020280703123} is an apocalyptic number.

1020280703123 is a deficient number, since it is larger than the sum of its proper divisors (103014876877).

1020280703123 is a wasteful number, since it uses less digits than its factorization.

1020280703123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301462.

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 1020280703123 in words is "one trillion, twenty billion, two hundred eighty million, seven hundred three thousand, one hundred twenty-three".