1155003150023 has 4 divisors (see below), whose sum is σ = 1155290396808. Its totient is φ = 1154715903240.

The previous prime is 1155003150011. The next prime is 1155003150079. The reversal of 1155003150023 is 3200513005511.

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 1155003150023 - 2²⁶ = 1154936041159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155003149974 and 1155003150001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155003150083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143617361 + ... + 143625402.

It is an arithmetic number, because the mean of its divisors is an integer number (288822599202).

Almost surely, 2^{1155003150023} is an apocalyptic number.

1155003150023 is a deficient number, since it is larger than the sum of its proper divisors (287246785).

1155003150023 is an equidigital number, since it uses as much as digits as its factorization.

1155003150023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287246784.

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 1155003150023 its reverse (3200513005511), we get a palindrome (4355516155534).

The spelling of 1155003150023 in words is "one trillion, one hundred fifty-five billion, three million, one hundred fifty thousand, twenty-three".