1103331110021 has 12 divisors (see below), whose sum is σ = 1339269707232. Its totient is φ = 904594449528.

The previous prime is 1103331110003. The next prime is 1103331110023. The reversal of 1103331110021 is 1200111333011.

It is not a de Polignac number, because 1103331110021 - 2¹⁴ = 1103331093637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103331110023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 489498035 + ... + 489500288.

It is an arithmetic number, because the mean of its divisors is an integer number (111605808936).

Almost surely, 2^{1103331110021} is an apocalyptic number.

It is an amenable number.

1103331110021 is a deficient number, since it is larger than the sum of its proper divisors (235938597211).

1103331110021 is an equidigital number, since it uses as much as digits as its factorization.

1103331110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978998360 (or 978998353 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1103331110021 its reverse (1200111333011), we get a palindrome (2303442443032).

The spelling of 1103331110021 in words is "one trillion, one hundred three billion, three hundred thirty-one million, one hundred ten thousand, twenty-one".