1152311123 has 8 divisors (see below), whose sum is σ = 1173827760. Its totient is φ = 1130860800.

The previous prime is 1152311089. The next prime is 1152311129. The reversal of 1152311123 is 3211132511.

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 1152311123 - 2¹² = 1152307027 is a prime.

It is a super-2 number, since 2×1152311123² = 2655641848379042258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1152311095 and 1152311104.

It is not an unprimeable number, because it can be changed into a prime (1152311129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19211 + ... + 51707.

It is an arithmetic number, because the mean of its divisors is an integer number (146728470).

Almost surely, 2^1152311123 is an apocalyptic number.

1152311123 is a deficient number, since it is larger than the sum of its proper divisors (21516637).

1152311123 is an equidigital number, since it uses as much as digits as its factorization.

1152311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33157.

The product of its digits is 180, while the sum is 20.

The square root of 1152311123 is about 33945.7084621900. The cubic root of 1152311123 is about 1048.3909210554.

Adding to 1152311123 its reverse (3211132511), we get a palindrome (4363443634).

The spelling of 1152311123 in words is "one billion, one hundred fifty-two million, three hundred eleven thousand, one hundred twenty-three".