1220503141 has 16 divisors (see below), whose sum is σ = 1434964608. Its totient is φ = 1023422400.

The previous prime is 1220503121. The next prime is 1220503157. The reversal of 1220503141 is 1413050221.

It is not a de Polignac number, because 1220503141 - 2⁹ = 1220502629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220503121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261811 + ... + 266431.

It is an arithmetic number, because the mean of its divisors is an integer number (89685288).

Almost surely, 2^1220503141 is an apocalyptic number.

1220503141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220503141 is a deficient number, since it is larger than the sum of its proper divisors (214461467).

1220503141 is a wasteful number, since it uses less digits than its factorization.

1220503141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6492.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1220503141 is about 34935.7000931712. The cubic root of 1220503141 is about 1068.6766009759.

Adding to 1220503141 its reverse (1413050221), we get a palindrome (2633553362).

The spelling of 1220503141 in words is "one billion, two hundred twenty million, five hundred three thousand, one hundred forty-one".