1231412361 has 16 divisors (see below), whose sum is σ = 1678779648. Its totient is φ = 802534400.

The previous prime is 1231412359. The next prime is 1231412383. The reversal of 1231412361 is 1632141321.

It is a happy number.

It is not a de Polignac number, because 1231412361 - 2¹ = 1231412359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231412321) 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, 128041 + ... + 137321.

It is an arithmetic number, because the mean of its divisors is an integer number (104923728).

Almost surely, 2^1231412361 is an apocalyptic number.

It is an amenable number.

1231412361 is a deficient number, since it is larger than the sum of its proper divisors (447367287).

1231412361 is an equidigital number, since it uses as much as digits as its factorization.

1231412361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10272.

The product of its digits is 864, while the sum is 24.

The square root of 1231412361 is about 35091.4855912371. The cubic root of 1231412361 is about 1071.8512108902.

Adding to 1231412361 its reverse (1632141321), we get a palindrome (2863553682).

The spelling of 1231412361 in words is "one billion, two hundred thirty-one million, four hundred twelve thousand, three hundred sixty-one".