1312154365211 has 8 divisors (see below), whose sum is σ = 1319832914400. Its totient is φ = 1304480531520.

The previous prime is 1312154365183. The next prime is 1312154365217. The reversal of 1312154365211 is 1125634512131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312154365211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312154365217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619946 + ... + 1734543.

It is an arithmetic number, because the mean of its divisors is an integer number (164979114300).

Almost surely, 2^{1312154365211} is an apocalyptic number.

1312154365211 is a deficient number, since it is larger than the sum of its proper divisors (7678549189).

1312154365211 is a wasteful number, since it uses less digits than its factorization.

1312154365211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357749.

The product of its digits is 21600, while the sum is 35.

Adding to 1312154365211 its reverse (1125634512131), we get a palindrome (2437788877342).

The spelling of 1312154365211 in words is "one trillion, three hundred twelve billion, one hundred fifty-four million, three hundred sixty-five thousand, two hundred eleven".