1220428543803 has 8 divisors (see below), whose sum is σ = 1859700638208. Its totient is φ = 697387739304.

The previous prime is 1220428543801. The next prime is 1220428543811. The reversal of 1220428543803 is 3083458240221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220428543803 - 2¹ = 1220428543801 is a prime.

It is a super-2 number, since 2×1220428543803² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220428543801) 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 7 ways as a sum of consecutive naturals, for example, 29057822451 + ... + 29057822492.

It is an arithmetic number, because the mean of its divisors is an integer number (232462579776).

Almost surely, 2^{1220428543803} is an apocalyptic number.

1220428543803 is a deficient number, since it is larger than the sum of its proper divisors (639272094405).

1220428543803 is an equidigital number, since it uses as much as digits as its factorization.

1220428543803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58115644953.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 1220428543803 in words is "one trillion, two hundred twenty billion, four hundred twenty-eight million, five hundred forty-three thousand, eight hundred three".