1100121541 has 8 divisors (see below), whose sum is σ = 1105891200. Its totient is φ = 1094362080.

The previous prime is 1100121509. The next prime is 1100121559. The reversal of 1100121541 is 1451210011.

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 1100121541 - 2⁵ = 1100121509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100121041) 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, 306286 + ... + 309856.

It is an arithmetic number, because the mean of its divisors is an integer number (138236400).

Almost surely, 2^1100121541 is an apocalyptic number.

It is an amenable number.

1100121541 is a deficient number, since it is larger than the sum of its proper divisors (5769659).

1100121541 is a wasteful number, since it uses less digits than its factorization.

1100121541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1100121541 is about 33168.0801524598. The cubic root of 1100121541 is about 1032.3181335584.

Adding to 1100121541 its reverse (1451210011), we get a palindrome (2551331552).

The spelling of 1100121541 in words is "one billion, one hundred million, one hundred twenty-one thousand, five hundred forty-one".