1312401224 has 32 divisors (see below), whose sum is σ = 2629882080. Its totient is φ = 611821824.

The previous prime is 1312401217. The next prime is 1312401253. The reversal of 1312401224 is 4221042131.

It is a junction number, because it is equal to n+sod(n) for n = 1312401196 and 1312401205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30542 + ... + 59645.

It is an arithmetic number, because the mean of its divisors is an integer number (82183815).

Almost surely, 2^1312401224 is an apocalyptic number.

It is an amenable number.

1312401224 is an abundant number, since it is smaller than the sum of its proper divisors (1317480856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312401224 is a wasteful number, since it uses less digits than its factorization.

1312401224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90317 (or 90313 counting only the distinct ones).

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

The square root of 1312401224 is about 36227.0786015102. The cubic root of 1312401224 is about 1094.8523181634.

Adding to 1312401224 its reverse (4221042131), we get a palindrome (5533443355).

The spelling of 1312401224 in words is "one billion, three hundred twelve million, four hundred one thousand, two hundred twenty-four".