1220132321103 has 24 divisors (see below), whose sum is σ = 1674201569040. Its totient is φ = 790395160320.

The previous prime is 1220132321101. The next prime is 1220132321129. The reversal of 1220132321103 is 3011232310221.

It is not a de Polignac number, because 1220132321103 - 2¹ = 1220132321101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220132321103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220132321101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2930233 + ... + 3320621.

It is an arithmetic number, because the mean of its divisors is an integer number (69758398710).

Almost surely, 2^{1220132321103} is an apocalyptic number.

1220132321103 is a deficient number, since it is larger than the sum of its proper divisors (454069247937).

1220132321103 is an equidigital number, since it uses as much as digits as its factorization.

1220132321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391227 (or 391190 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1220132321103 its reverse (3011232310221), we get a palindrome (4231364631324).

The spelling of 1220132321103 in words is "one trillion, two hundred twenty billion, one hundred thirty-two million, three hundred twenty-one thousand, one hundred three".