1151120123 has 8 divisors (see below), whose sum is σ = 1202452128. Its totient is φ = 1099895104.

The previous prime is 1151120119. The next prime is 1151120143. The reversal of 1151120123 is 3210211511.

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 1151120123 - 2² = 1151120119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151120143) 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 7 ways as a sum of consecutive naturals, for example, 4340 + ... + 48177.

It is an arithmetic number, because the mean of its divisors is an integer number (150306516).

Almost surely, 2^1151120123 is an apocalyptic number.

1151120123 is a deficient number, since it is larger than the sum of its proper divisors (51332005).

1151120123 is an equidigital number, since it uses as much as digits as its factorization.

1151120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53493.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1151120123 is about 33928.1612086479. The cubic root of 1151120123 is about 1048.0295996510.

Adding to 1151120123 its reverse (3210211511), we get a palindrome (4361331634).

The spelling of 1151120123 in words is "one billion, one hundred fifty-one million, one hundred twenty thousand, one hundred twenty-three".