1020506552403 has 32 divisors (see below), whose sum is σ = 1500209001984. Its totient is φ = 613076712192.

The previous prime is 1020506552399. The next prime is 1020506552411. The reversal of 1020506552403 is 3042556050201.

It is not a de Polignac number, because 1020506552403 - 2² = 1020506552399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020506552423) 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 in 31 ways as a sum of consecutive naturals, for example, 3049050 + ... + 3367152.

It is an arithmetic number, because the mean of its divisors is an integer number (46881531312).

Almost surely, 2^{1020506552403} is an apocalyptic number.

1020506552403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020506552403 is a deficient number, since it is larger than the sum of its proper divisors (479702449581).

1020506552403 is a wasteful number, since it uses less digits than its factorization.

1020506552403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320075.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 1020506552403 in words is "one trillion, twenty billion, five hundred six million, five hundred fifty-two thousand, four hundred three".