1121443101 has 12 divisors (see below), whose sum is σ = 1663642812. Its totient is φ = 727422336.

The previous prime is 1121443069. The next prime is 1121443133. The reversal of 1121443101 is 1013441211.

1121443101 is a `hidden beast` number, since 1 + 121 + 443 + 101 = 666.

It is an interprime number because it is at equal distance from previous prime (1121443069) and next prime (1121443133).

It can be written as a sum of positive squares in 2 ways, for example, as 394062201 + 727380900 = 19851^2 + 26970^2 .

It is not a de Polignac number, because 1121443101 - 2⁵ = 1121443069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121443201) 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, 1683516 + ... + 1684181.

It is an arithmetic number, because the mean of its divisors is an integer number (138636901).

Almost surely, 2^1121443101 is an apocalyptic number.

It is an amenable number.

1121443101 is a deficient number, since it is larger than the sum of its proper divisors (542199711).

1121443101 is a wasteful number, since it uses less digits than its factorization.

1121443101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367740 (or 3367737 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1121443101 is about 33487.9545657838. The cubic root of 1121443101 is about 1038.9446583110.

Adding to 1121443101 its reverse (1013441211), we get a palindrome (2134884312).

The spelling of 1121443101 in words is "one billion, one hundred twenty-one million, four hundred forty-three thousand, one hundred one".