1231242301 has 2 divisors, whose sum is σ = 1231242302. Its totient is φ = 1231242300.

The previous prime is 1231242281. The next prime is 1231242319. The reversal of 1231242301 is 1032421321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1137443076 + 93799225 = 33726^2 + 9685^2 .

It is an emirp because it is prime and its reverse (1032421321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1231242301 - 2¹¹ = 1231240253 is a prime.

It is a super-3 number, since 3×1231242301³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231249301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615621150 + 615621151.

It is an arithmetic number, because the mean of its divisors is an integer number (615621151).

Almost surely, 2^1231242301 is an apocalyptic number.

It is an amenable number.

1231242301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231242301 is an equidigital number, since it uses as much as digits as its factorization.

1231242301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1231242301 is about 35089.0624126664. The cubic root of 1231242301 is about 1071.8018671679.

Adding to 1231242301 its reverse (1032421321), we get a palindrome (2263663622).

The spelling of 1231242301 in words is "one billion, two hundred thirty-one million, two hundred forty-two thousand, three hundred one".