1231413321 has 8 divisors (see below), whose sum is σ = 1642047264. Its totient is φ = 820860800.

The previous prime is 1231413277. The next prime is 1231413349. The reversal of 1231413321 is 1233141321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231413321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1231413361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44050 + ... + 66356.

It is an arithmetic number, because the mean of its divisors is an integer number (205255908).

Almost surely, 2^1231413321 is an apocalyptic number.

It is an amenable number.

1231413321 is a deficient number, since it is larger than the sum of its proper divisors (410633943).

1231413321 is a wasteful number, since it uses less digits than its factorization.

1231413321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40711.

The product of its digits is 432, while the sum is 21.

The square root of 1231413321 is about 35091.4992697662. The cubic root of 1231413321 is about 1071.8514894259.

Adding to 1231413321 its reverse (1233141321), we get a palindrome (2464554642).

Subtracting 1231413321 from its reverse (1233141321), we obtain a cube (1728000 = 120³).

The spelling of 1231413321 in words is "one billion, two hundred thirty-one million, four hundred thirteen thousand, three hundred twenty-one".