1312120153 has 2 divisors, whose sum is σ = 1312120154. Its totient is φ = 1312120152.

The previous prime is 1312120133. The next prime is 1312120211. The reversal of 1312120153 is 3510212131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1296216009 + 15904144 = 36003^2 + 3988^2 .

It is an emirp because it is prime and its reverse (3510212131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312120153 - 2¹³ = 1312111961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312120153.

It is not a weakly prime, because it can be changed into another prime (1312120133) by changing a digit.

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, 656060076 + 656060077.

It is an arithmetic number, because the mean of its divisors is an integer number (656060077).

Almost surely, 2^1312120153 is an apocalyptic number.

It is an amenable number.

1312120153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312120153 is an equidigital number, since it uses as much as digits as its factorization.

1312120153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1312120153 is about 36223.1990994722. The cubic root of 1312120153 is about 1094.7741527362.

Adding to 1312120153 its reverse (3510212131), we get a palindrome (4822332284).

The spelling of 1312120153 in words is "one billion, three hundred twelve million, one hundred twenty thousand, one hundred fifty-three".