1230512401 has 2 divisors, whose sum is σ = 1230512402. Its totient is φ = 1230512400.

The previous prime is 1230512399. The next prime is 1230512407. The reversal of 1230512401 is 1042150321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735494400 + 495018001 = 27120^2 + 22249^2 .

It is an emirp because it is prime and its reverse (1042150321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230512401 - 2¹ = 1230512399 is a prime.

Together with 1230512399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1230512407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615256200 + 615256201.

It is an arithmetic number, because the mean of its divisors is an integer number (615256201).

Almost surely, 2^1230512401 is an apocalyptic number.

It is an amenable number.

1230512401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230512401 is an equidigital number, since it uses as much as digits as its factorization.

1230512401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1230512401 is about 35078.6601939128. The cubic root of 1230512401 is about 1071.5900315768.

Adding to 1230512401 its reverse (1042150321), we get a palindrome (2272662722).

The spelling of 1230512401 in words is "one billion, two hundred thirty million, five hundred twelve thousand, four hundred one".