1143421101 has 24 divisors (see below), whose sum is σ = 1713091224. Its totient is φ = 734313600.

The previous prime is 1143421093. The next prime is 1143421157. The reversal of 1143421101 is 1011243411.

1143421101 is a `hidden beast` number, since 1 + 143 + 421 + 101 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 776736900 + 366684201 = 27870^2 + 19149^2 .

It is not a de Polignac number, because 1143421101 - 2³ = 1143421093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143422101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16635 + ... + 50631.

It is an arithmetic number, because the mean of its divisors is an integer number (71378801).

Almost surely, 2^1143421101 is an apocalyptic number.

It is an amenable number.

1143421101 is a deficient number, since it is larger than the sum of its proper divisors (569670123).

1143421101 is a wasteful number, since it uses less digits than its factorization.

1143421101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34141 (or 34138 counting only the distinct ones).

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

The square root of 1143421101 is about 33814.5102138121. The cubic root of 1143421101 is about 1045.6878634738.

Adding to 1143421101 its reverse (1011243411), we get a palindrome (2154664512).

The spelling of 1143421101 in words is "one billion, one hundred forty-three million, four hundred twenty-one thousand, one hundred one".