1101311223121 has 8 divisors (see below), whose sum is σ = 1101987451584. Its totient is φ = 1100635190160.

The previous prime is 1101311223119. The next prime is 1101311223127. The reversal of 1101311223121 is 1213221131011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101311223121 - 2¹ = 1101311223119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101311223127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12136500 + ... + 12226906.

It is an arithmetic number, because the mean of its divisors is an integer number (137748431448).

Almost surely, 2^{1101311223121} is an apocalyptic number.

It is an amenable number.

1101311223121 is a deficient number, since it is larger than the sum of its proper divisors (676228463).

1101311223121 is an equidigital number, since it uses as much as digits as its factorization.

1101311223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97751.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1101311223121 its reverse (1213221131011), we get a palindrome (2314532354132).

The spelling of 1101311223121 in words is "one trillion, one hundred one billion, three hundred eleven million, two hundred twenty-three thousand, one hundred twenty-one".