1312120223332 has 6 divisors (see below), whose sum is σ = 2296210390838. Its totient is φ = 656060111664.

The previous prime is 1312120223263. The next prime is 1312120223369. The reversal of 1312120223332 is 2333220212131.

It can be written as a sum of positive squares in only one way, i.e., 886410952036 + 425709271296 = 941494^2 + 652464^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312120223297 and 1312120223306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164015027913 + ... + 164015027920.

Almost surely, 2^{1312120223332} is an apocalyptic number.

It is an amenable number.

1312120223332 is a deficient number, since it is larger than the sum of its proper divisors (984090167506).

1312120223332 is a wasteful number, since it uses less digits than its factorization.

1312120223332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328030055837 (or 328030055835 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1312120223332 its reverse (2333220212131), we get a palindrome (3645340435463).

The spelling of 1312120223332 in words is "one trillion, three hundred twelve billion, one hundred twenty million, two hundred twenty-three thousand, three hundred thirty-two".