1230210001 has 4 divisors (see below), whose sum is σ = 1230980004. Its totient is φ = 1229440000.

The previous prime is 1230209963. The next prime is 1230210013. The reversal of 1230210001 is 1000120321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000120321 = 1307 ⋅765203.

It can be written as a sum of positive squares in 2 ways, for example, as 625050001 + 605160000 = 25001^2 + 24600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230210001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230210001.

It is not an unprimeable number, because it can be changed into a prime (1230210031) 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, 382600 + ... + 385801.

It is an arithmetic number, because the mean of its divisors is an integer number (307745001).

Almost surely, 2^1230210001 is an apocalyptic number.

It is an amenable number.

1230210001 is a deficient number, since it is larger than the sum of its proper divisors (770003).

1230210001 is an equidigital number, since it uses as much as digits as its factorization.

1230210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770002.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1230210001 is about 35074.3496162081. The cubic root of 1230210001 is about 1071.5022428437.

Adding to 1230210001 its reverse (1000120321), we get a palindrome (2230330322).

The spelling of 1230210001 in words is "one billion, two hundred thirty million, two hundred ten thousand, one".