1151342123 has 8 divisors (see below), whose sum is σ = 1155348480. Its totient is φ = 1147343400.

The previous prime is 1151342099. The next prime is 1151342147. The reversal of 1151342123 is 3212431511.

It is an interprime number because it is at equal distance from previous prime (1151342099) and next prime (1151342147).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1151342123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151342623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502286 + ... + 504572.

It is an arithmetic number, because the mean of its divisors is an integer number (144418560).

Almost surely, 2^1151342123 is an apocalyptic number.

1151342123 is a deficient number, since it is larger than the sum of its proper divisors (4006357).

1151342123 is a wasteful number, since it uses less digits than its factorization.

1151342123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817.

The product of its digits is 720, while the sum is 23.

The square root of 1151342123 is about 33931.4326694291. The cubic root of 1151342123 is about 1048.0969681244.

Adding to 1151342123 its reverse (3212431511), we get a palindrome (4363773634).

The spelling of 1151342123 in words is "one billion, one hundred fifty-one million, three hundred forty-two thousand, one hundred twenty-three".