11155532043000 has 64 divisors (see below), whose sum is σ = 34805259983520. Its totient is φ = 2974808544000.

The previous prime is 11155532042987. The next prime is 11155532043013. The reversal of 11155532043000 is 34023555111.

It is an interprime number because it is at equal distance from previous prime (11155532042987) and next prime (11155532043013).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1859252341 + ... + 1859258340.

Almost surely, 2^{11155532043000} is an apocalyptic number.

11155532043000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11155532043000 is an abundant number, since it is smaller than the sum of its proper divisors (23649727940520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11155532043000 is a wasteful number, since it uses less digits than its factorization.

11155532043000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718510705 (or 3718510691 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 11155532043000 its reverse (34023555111), we get a palindrome (11189555598111).

The spelling of 11155532043000 in words is "eleven trillion, one hundred fifty-five billion, five hundred thirty-two million, forty-three thousand".