1202143111 has 8 divisors (see below), whose sum is σ = 1322161344. Its totient is φ = 1086060000.

The previous prime is 1202143109. The next prime is 1202143121. The reversal of 1202143111 is 1113412021.

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 1202143111 - 2¹ = 1202143109 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 (1202143121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983140 + ... + 984361.

It is an arithmetic number, because the mean of its divisors is an integer number (165270168).

Almost surely, 2^1202143111 is an apocalyptic number.

1202143111 is a deficient number, since it is larger than the sum of its proper divisors (120018233).

1202143111 is a wasteful number, since it uses less digits than its factorization.

1202143111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967561.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1202143111 is about 34671.9354954407. The cubic root of 1202143111 is about 1063.2908027547.

Adding to 1202143111 its reverse (1113412021), we get a palindrome (2315555132).

The spelling of 1202143111 in words is "one billion, two hundred two million, one hundred forty-three thousand, one hundred eleven".