1001152565243 has 4 divisors (see below), whose sum is σ = 1028210742720. Its totient is φ = 974094387768.

The previous prime is 1001152565233. The next prime is 1001152565261. The reversal of 1001152565243 is 3425652511001.

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 1001152565243 - 2³² = 996857597947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001152565233) 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, 13529088683 + ... + 13529088756.

It is an arithmetic number, because the mean of its divisors is an integer number (257052685680).

Almost surely, 2^{1001152565243} is an apocalyptic number.

1001152565243 is a deficient number, since it is larger than the sum of its proper divisors (27058177477).

1001152565243 is an equidigital number, since it uses as much as digits as its factorization.

1001152565243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27058177476.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 1001152565243 in words is "one trillion, one billion, one hundred fifty-two million, five hundred sixty-five thousand, two hundred forty-three".