1230403211 has 2 divisors, whose sum is σ = 1230403212. Its totient is φ = 1230403210.

The previous prime is 1230403199. The next prime is 1230403241. The reversal of 1230403211 is 1123040321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230403211 is a prime.

It is a super-2 number, since 2×1230403211² = 3027784123278221042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1230403211.

It is not a weakly prime, because it can be changed into another prime (1230403241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615201605 + 615201606.

It is an arithmetic number, because the mean of its divisors is an integer number (615201606).

Almost surely, 2^1230403211 is an apocalyptic number.

1230403211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230403211 is an equidigital number, since it uses as much as digits as its factorization.

1230403211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1230403211 is about 35077.1038000574. The cubic root of 1230403211 is about 1071.5583346521.

Adding to 1230403211 its reverse (1123040321), we get a palindrome (2353443532).

The spelling of 1230403211 in words is "one billion, two hundred thirty million, four hundred three thousand, two hundred eleven".