1230211001 has 16 divisors (see below), whose sum is σ = 1351501200. Its totient is φ = 1114595328.

The previous prime is 1230210991. The next prime is 1230211019. The reversal of 1230211001 is 1001120321.

It can be written as a sum of positive squares in 8 ways, for example, as 1638400 + 1228572601 = 1280^2 + 35051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230211001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230211061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170495 + ... + 177563.

It is an arithmetic number, because the mean of its divisors is an integer number (84468825).

Almost surely, 2^1230211001 is an apocalyptic number.

It is an amenable number.

1230211001 is a deficient number, since it is larger than the sum of its proper divisors (121290199).

1230211001 is a wasteful number, since it uses less digits than its factorization.

1230211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7468.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1230211001 is about 35074.3638716371. The cubic root of 1230211001 is about 1071.5025331740.

Adding to 1230211001 its reverse (1001120321), we get a palindrome (2231331322).

The spelling of 1230211001 in words is "one billion, two hundred thirty million, two hundred eleven thousand, one".