1151287010123 has 4 divisors (see below), whose sum is σ = 1170160567728. Its totient is φ = 1132413452520.

The previous prime is 1151287010089. The next prime is 1151287010161. The reversal of 1151287010123 is 3210107821511.

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-1151287010123 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 1151287010123.

It is not an unprimeable number, because it can be changed into a prime (1151287070123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9436778711 + ... + 9436778832.

It is an arithmetic number, because the mean of its divisors is an integer number (292540141932).

Almost surely, 2^{1151287010123} is an apocalyptic number.

1151287010123 is a deficient number, since it is larger than the sum of its proper divisors (18873557605).

1151287010123 is an equidigital number, since it uses as much as digits as its factorization.

1151287010123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18873557604.

The product of its (nonzero) digits is 3360, while the sum is 32.

The spelling of 1151287010123 in words is "one trillion, one hundred fifty-one billion, two hundred eighty-seven million, ten thousand, one hundred twenty-three".