1312421024 has 12 divisors (see below), whose sum is σ = 2583828954. Its totient is φ = 656210496.

The previous prime is 1312421023. The next prime is 1312421027. The reversal of 1312421024 is 4201242131.

It can be written as a sum of positive squares in only one way, i.e., 1147041424 + 165379600 = 33868^2 + 12860^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312420987 and 1312421005.

It is not an unprimeable number, because it can be changed into a prime (1312421023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20506547 + ... + 20506610.

Almost surely, 2^1312421024 is an apocalyptic number.

It is an amenable number.

1312421024 is a deficient number, since it is larger than the sum of its proper divisors (1271407930).

1312421024 is an equidigital number, since it uses as much as digits as its factorization.

1312421024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41013167 (or 41013159 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1312421024 is about 36227.3518767243. The cubic root of 1312421024 is about 1094.8578240932.

Adding to 1312421024 its reverse (4201242131), we get a palindrome (5513663155).

The spelling of 1312421024 in words is "one billion, three hundred twelve million, four hundred twenty-one thousand, twenty-four".