1100130343421 has 20 divisors (see below), whose sum is σ = 1184906393292. Its totient is φ = 1021227342336.

The previous prime is 1100130343397. The next prime is 1100130343447. The reversal of 1100130343421 is 1243430310011.

It can be written as a sum of positive squares in 10 ways, for example, as 31261776100 + 1068868567321 = 176810^2 + 1033861^2 .

It is not a de Polignac number, because 1100130343421 - 2¹⁰ = 1100130342397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100130343021) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6006815 + ... + 6187251.

Almost surely, 2^{1100130343421} is an apocalyptic number.

It is an amenable number.

1100130343421 is a deficient number, since it is larger than the sum of its proper divisors (84776049871).

1100130343421 is an frugal number, since it uses more digits than its factorization.

1100130343421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180578 (or 180527 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1100130343421 its reverse (1243430310011), we get a palindrome (2343560653432).

The spelling of 1100130343421 in words is "one trillion, one hundred billion, one hundred thirty million, three hundred forty-three thousand, four hundred twenty-one".