1312103144 has 32 divisors (see below), whose sum is σ = 2776399200. Its totient is φ = 575843520.

The previous prime is 1312103141. The next prime is 1312103147. The reversal of 1312103144 is 4413012131.

It is an interprime number because it is at equal distance from previous prime (1312103141) and next prime (1312103147).

It is a super-2 number, since 2×1312103144² = 3443229320989369472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312103141) 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, 254522 + ... + 259625.

It is an arithmetic number, because the mean of its divisors is an integer number (86762475).

Almost surely, 2^1312103144 is an apocalyptic number.

It is an amenable number.

1312103144 is an abundant number, since it is smaller than the sum of its proper divisors (1464296056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312103144 is a wasteful number, since it uses less digits than its factorization.

1312103144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514193 (or 514189 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1312103144 is about 36222.9643182333. The cubic root of 1312103144 is about 1094.7694222004.

Adding to 1312103144 its reverse (4413012131), we get a palindrome (5725115275).

The spelling of 1312103144 in words is "one billion, three hundred twelve million, one hundred three thousand, one hundred forty-four".