1020404103303 has 16 divisors (see below), whose sum is σ = 1482848599680. Its totient is φ = 620375430624.

The previous prime is 1020404103293. The next prime is 1020404103359. The reversal of 1020404103303 is 3033014040201.

It is not a de Polignac number, because 1020404103303 - 2⁹ = 1020404102791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020404103303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020404103203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157612473 + ... + 157618946.

It is an arithmetic number, because the mean of its divisors is an integer number (92678037480).

Almost surely, 2^{1020404103303} is an apocalyptic number.

1020404103303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020404103303 is a deficient number, since it is larger than the sum of its proper divisors (462444496377).

1020404103303 is a wasteful number, since it uses less digits than its factorization.

1020404103303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315231518.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1020404103303 its reverse (3033014040201), we get a palindrome (4053418143504).

The spelling of 1020404103303 in words is "one trillion, twenty billion, four hundred four million, one hundred three thousand, three hundred three".