1143134553511 has 4 divisors (see below), whose sum is σ = 1143457385224. Its totient is φ = 1142811721800.

The previous prime is 1143134553401. The next prime is 1143134553553. The reversal of 1143134553511 is 1153554313411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1143134553511 - 2¹¹ = 1143134551463 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 (1143134553571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161410545 + ... + 161417626.

It is an arithmetic number, because the mean of its divisors is an integer number (285864346306).

Almost surely, 2^{1143134553511} is an apocalyptic number.

1143134553511 is a deficient number, since it is larger than the sum of its proper divisors (322831713).

1143134553511 is an equidigital number, since it uses as much as digits as its factorization.

1143134553511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322831712.

The product of its digits is 54000, while the sum is 37.

Adding to 1143134553511 its reverse (1153554313411), we get a palindrome (2296688866922).

The spelling of 1143134553511 in words is "one trillion, one hundred forty-three billion, one hundred thirty-four million, five hundred fifty-three thousand, five hundred eleven".