1100020103129 has 4 divisors (see below), whose sum is σ = 1100974154676. Its totient is φ = 1099066051584.

The previous prime is 1100020103123. The next prime is 1100020103153. The reversal of 1100020103129 is 9213010200011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 957947647504 + 142072455625 = 978748^2 + 376925^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100020103129 - 2⁸ = 1100020102873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100020103129.

It is not an unprimeable number, because it can be changed into a prime (1100020103123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477024044 + ... + 477026349.

It is an arithmetic number, because the mean of its divisors is an integer number (275243538669).

Almost surely, 2^{1100020103129} is an apocalyptic number.

It is an amenable number.

1100020103129 is a deficient number, since it is larger than the sum of its proper divisors (954051547).

1100020103129 is an equidigital number, since it uses as much as digits as its factorization.

1100020103129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954051546.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 1100020103129 in words is "one trillion, one hundred billion, twenty million, one hundred three thousand, one hundred twenty-nine".