1152123001 has 4 divisors (see below), whose sum is σ = 1180223604. Its totient is φ = 1124022400.

The previous prime is 1152122999. The next prime is 1152123023. The reversal of 1152123001 is 1003212511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 603439225 + 548683776 = 24565^2 + 23424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152123001 - 2¹ = 1152122999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152193001) 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 3 ways as a sum of consecutive naturals, for example, 14050240 + ... + 14050321.

It is an arithmetic number, because the mean of its divisors is an integer number (295055901).

Almost surely, 2^1152123001 is an apocalyptic number.

It is an amenable number.

1152123001 is a deficient number, since it is larger than the sum of its proper divisors (28100603).

1152123001 is an equidigital number, since it uses as much as digits as its factorization.

1152123001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28100602.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1152123001 is about 33942.9374244481. The cubic root of 1152123001 is about 1048.3338658248. Note that the first 3 decimals are identical.

Adding to 1152123001 its reverse (1003212511), we get a palindrome (2155335512).

The spelling of 1152123001 in words is "one billion, one hundred fifty-two million, one hundred twenty-three thousand, one".