1230505001 has 4 divisors (see below), whose sum is σ = 1342369104. Its totient is φ = 1118640900.

The previous prime is 1230504973. The next prime is 1230505013. The reversal of 1230505001 is 1005050321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230505001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230504001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55932035 + ... + 55932056.

It is an arithmetic number, because the mean of its divisors is an integer number (335592276).

Almost surely, 2^1230505001 is an apocalyptic number.

1230505001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1230505001 is a deficient number, since it is larger than the sum of its proper divisors (111864103).

1230505001 is a wasteful number, since it uses less digits than its factorization.

1230505001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111864102.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1230505001 is about 35078.5547165216. The cubic root of 1230505001 is about 1071.5878834792.

Adding to 1230505001 its reverse (1005050321), we get a palindrome (2235555322).

The spelling of 1230505001 in words is "one billion, two hundred thirty million, five hundred five thousand, one".