1135001243 has 8 divisors (see below), whose sum is σ = 1218693600. Its totient is φ = 1053189760.

The previous prime is 1135001213. The next prime is 1135001251. The reversal of 1135001243 is 3421005311.

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 1135001243 - 2¹⁰ = 1135000219 is a prime.

It is a super-2 number, since 2×1135001243² = 2576455643223090098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135001213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468968 + ... + 471381.

It is an arithmetic number, because the mean of its divisors is an integer number (152336700).

Almost surely, 2^1135001243 is an apocalyptic number.

1135001243 is a deficient number, since it is larger than the sum of its proper divisors (83692357).

1135001243 is an equidigital number, since it uses as much as digits as its factorization.

1135001243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940437.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1135001243 is about 33689.7795035824. The cubic root of 1135001243 is about 1043.1148121208.

Adding to 1135001243 its reverse (3421005311), we get a palindrome (4556006554).

The spelling of 1135001243 in words is "one billion, one hundred thirty-five million, one thousand, two hundred forty-three".