143783971121 has 16 divisors (see below), whose sum is σ = 165342110976. Its totient is φ = 122480526336.

The previous prime is 143783971091. The next prime is 143783971129. The reversal of 143783971121 is 121179387341.

It is a de Polignac number, because none of the positive numbers 2^k-143783971121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143783971129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7866425 + ... + 7884681.

It is an arithmetic number, because the mean of its divisors is an integer number (10333881936).

Almost surely, 2^143783971121 is an apocalyptic number.

It is an amenable number.

143783971121 is a deficient number, since it is larger than the sum of its proper divisors (21558139855).

143783971121 is a wasteful number, since it uses less digits than its factorization.

143783971121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25168.

The product of its digits is 254016, while the sum is 47.

The spelling of 143783971121 in words is "one hundred forty-three billion, seven hundred eighty-three million, nine hundred seventy-one thousand, one hundred twenty-one".