1143142233405 has 32 divisors (see below), whose sum is σ = 1944560929536. Its totient is φ = 572165028864.

The previous prime is 1143142233403. The next prime is 1143142233437. The reversal of 1143142233405 is 5043322413411.

It is not a de Polignac number, because 1143142233405 - 2¹ = 1143142233403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143142233403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31240732 + ... + 31277301.

It is an arithmetic number, because the mean of its divisors is an integer number (60767529048).

Almost surely, 2^{1143142233405} is an apocalyptic number.

1143142233405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143142233405 is a deficient number, since it is larger than the sum of its proper divisors (801418696131).

1143142233405 is a wasteful number, since it uses less digits than its factorization.

1143142233405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62518117.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 1143142233405 its reverse (5043322413411), we get a palindrome (6186464646816).

The spelling of 1143142233405 in words is "one trillion, one hundred forty-three billion, one hundred forty-two million, two hundred thirty-three thousand, four hundred five".