1321012708 has 6 divisors (see below), whose sum is σ = 2311772246. Its totient is φ = 660506352.

The previous prime is 1321012699. The next prime is 1321012733. The reversal of 1321012708 is 8072101231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 791184384 + 529828324 = 28128^2 + 23018^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165126585 + ... + 165126592.

Almost surely, 2^1321012708 is an apocalyptic number.

It is an amenable number.

1321012708 is a deficient number, since it is larger than the sum of its proper divisors (990759538).

1321012708 is a wasteful number, since it uses less digits than its factorization.

1321012708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330253181 (or 330253179 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1321012708 is about 36345.7385122383. The cubic root of 1321012708 is about 1097.2417694563.

Adding to 1321012708 its reverse (8072101231), we get a palindrome (9393113939).

The spelling of 1321012708 in words is "one billion, three hundred twenty-one million, twelve thousand, seven hundred eight".