1158553127203 has 4 divisors (see below), whose sum is σ = 1158576287848. Its totient is φ = 1158529966560.

The previous prime is 1158553127191. The next prime is 1158553127233. The reversal of 1158553127203 is 3027213558511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1158553127203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1158553127203.

It is not an unprimeable number, because it can be changed into a prime (1158553127233) 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, 11505126 + ... + 11605387.

It is an arithmetic number, because the mean of its divisors is an integer number (289644071962).

Almost surely, 2^{1158553127203} is an apocalyptic number.

1158553127203 is a deficient number, since it is larger than the sum of its proper divisors (23160645).

1158553127203 is an equidigital number, since it uses as much as digits as its factorization.

1158553127203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23160644.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 1158553127203 in words is "one trillion, one hundred fifty-eight billion, five hundred fifty-three million, one hundred twenty-seven thousand, two hundred three".