1101011121 has 12 divisors (see below), whose sum is σ = 1817542272. Its totient is φ = 629149176.

The previous prime is 1101011117. The next prime is 1101011123. The reversal of 1101011121 is 1211101011.

It is not a de Polignac number, because 1101011121 - 2² = 1101011117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1101011123) 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, 8738121 + ... + 8738246.

It is an arithmetic number, because the mean of its divisors is an integer number (151461856).

Almost surely, 2^1101011121 is an apocalyptic number.

It is an amenable number.

1101011121 is a deficient number, since it is larger than the sum of its proper divisors (716531151).

1101011121 is a wasteful number, since it uses less digits than its factorization.

1101011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17476380 (or 17476377 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 1101011121 is about 33181.4876248790. The cubic root of 1101011121 is about 1032.5963095344.

Adding to 1101011121 its reverse (1211101011), we get a palindrome (2312112132).

It can be divided in two parts, 1101011 and 121, that multiplied together give a palindrome (133222331).

The spelling of 1101011121 in words is "one billion, one hundred one million, eleven thousand, one hundred twenty-one".