1101232121 has 8 divisors (see below), whose sum is σ = 1211976864. Its totient is φ = 992259520.

The previous prime is 1101232057. The next prime is 1101232163. The reversal of 1101232121 is 1212321011.

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 1101232121 - 2⁶ = 1101232057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101232096 and 1101232105.

It is not an unprimeable number, because it can be changed into a prime (1101232721) 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, 441731 + ... + 444216.

It is an arithmetic number, because the mean of its divisors is an integer number (151497108).

Almost surely, 2^1101232121 is an apocalyptic number.

1101232121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101232121 is a deficient number, since it is larger than the sum of its proper divisors (110744743).

1101232121 is a wasteful number, since it uses less digits than its factorization.

1101232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886071.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1101232121 is about 33184.8176279455. The cubic root of 1101232121 is about 1032.6653940674.

Adding to 1101232121 its reverse (1212321011), we get a palindrome (2313553132).

The spelling of 1101232121 in words is "one billion, one hundred one million, two hundred thirty-two thousand, one hundred twenty-one".