1103030312221 has 16 divisors (see below), whose sum is σ = 1246224528000. Its totient is φ = 970034185728.

The previous prime is 1103030312177. The next prime is 1103030312231. The reversal of 1103030312221 is 1222130303011.

It is a cyclic number.

It is not a de Polignac number, because 1103030312221 - 2⁹ = 1103030311709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103030312231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23366521 + ... + 23413678.

It is an arithmetic number, because the mean of its divisors is an integer number (77889033000).

Almost surely, 2^{1103030312221} is an apocalyptic number.

It is an amenable number.

1103030312221 is a deficient number, since it is larger than the sum of its proper divisors (143194215779).

1103030312221 is a wasteful number, since it uses less digits than its factorization.

1103030312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46780308.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1103030312221 its reverse (1222130303011), we get a palindrome (2325160615232).

The spelling of 1103030312221 in words is "one trillion, one hundred three billion, thirty million, three hundred twelve thousand, two hundred twenty-one".