1220103012320 has 48 divisors (see below), whose sum is σ = 2943823030848. Its totient is φ = 477657346560.

The previous prime is 1220103012287. The next prime is 1220103012353. The reversal of 1220103012320 is 232103010221.

It is an interprime number because it is at equal distance from previous prime (1220103012287) and next prime (1220103012353).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81116351 + ... + 81131390.

It is an arithmetic number, because the mean of its divisors is an integer number (61329646476).

Almost surely, 2^{1220103012320} is an apocalyptic number.

1220103012320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220103012320 is an abundant number, since it is smaller than the sum of its proper divisors (1723720018528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220103012320 is a wasteful number, since it uses less digits than its factorization.

1220103012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162247803 (or 162247795 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1220103012320 its reverse (232103010221), we get a palindrome (1452206022541).

The spelling of 1220103012320 in words is "one trillion, two hundred twenty billion, one hundred three million, twelve thousand, three hundred twenty".