1101100023121 has 4 divisors (see below), whose sum is σ = 1258400026432. Its totient is φ = 943800019812.

The previous prime is 1101100023113. The next prime is 1101100023139. The reversal of 1101100023121 is 1213200011011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1101100023121 - 2³ = 1101100023113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101100020121) 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, 78650001645 + ... + 78650001658.

It is an arithmetic number, because the mean of its divisors is an integer number (314600006608).

Almost surely, 2^{1101100023121} is an apocalyptic number.

It is an amenable number.

1101100023121 is a deficient number, since it is larger than the sum of its proper divisors (157300003311).

1101100023121 is an equidigital number, since it uses as much as digits as its factorization.

1101100023121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157300003310.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1101100023121 its reverse (1213200011011), we get a palindrome (2314300034132).

The spelling of 1101100023121 in words is "one trillion, one hundred one billion, one hundred million, twenty-three thousand, one hundred twenty-one".