1311212302130 has 16 divisors (see below), whose sum is σ = 2370311685144. Its totient is φ = 522233911680.

The previous prime is 1311212302073. The next prime is 1311212302139. The reversal of 1311212302130 is 312032121131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 936402647041 + 374809655089 = 967679^2 + 612217^2 .

It is not an unprimeable number, because it can be changed into a prime (1311212302139) 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, 281373701 + ... + 281378360.

Almost surely, 2^{1311212302130} is an apocalyptic number.

1311212302130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311212302130 is a deficient number, since it is larger than the sum of its proper divisors (1059099383014).

1311212302130 is a wasteful number, since it uses less digits than its factorization.

1311212302130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562752301.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1311212302130 its reverse (312032121131), we get a palindrome (1623244423261).

The spelling of 1311212302130 in words is "one trillion, three hundred eleven billion, two hundred twelve million, three hundred two thousand, one hundred thirty".