1143212141 has 16 divisors (see below), whose sum is σ = 1261698048. Its totient is φ = 1031097600.

The previous prime is 1143212131. The next prime is 1143212167. The reversal of 1143212141 is 1412123411.

It is a de Polignac number, because none of the positive numbers 2^k-1143212141 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 (1143212131) 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, 43751 + ... + 64811.

It is an arithmetic number, because the mean of its divisors is an integer number (78856128).

Almost surely, 2^1143212141 is an apocalyptic number.

It is an amenable number.

1143212141 is a deficient number, since it is larger than the sum of its proper divisors (118485907).

1143212141 is a wasteful number, since it uses less digits than its factorization.

1143212141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21212.

The product of its digits is 192, while the sum is 20.

The square root of 1143212141 is about 33811.4202748125. The cubic root of 1143212141 is about 1045.6241598369.

Adding to 1143212141 its reverse (1412123411), we get a palindrome (2555335552).

The spelling of 1143212141 in words is "one billion, one hundred forty-three million, two hundred twelve thousand, one hundred forty-one".