1312203003144 has 64 divisors (see below), whose sum is σ = 3579281879040. Its totient is φ = 397576560960.

The previous prime is 1312203003121. The next prime is 1312203003179. The reversal of 1312203003144 is 4413003022131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1368097 + ... + 2120399.

It is an arithmetic number, because the mean of its divisors is an integer number (55926279360).

Almost surely, 2^{1312203003144} is an apocalyptic number.

It is an amenable number.

1312203003144 is an abundant number, since it is smaller than the sum of its proper divisors (2267078875896).

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

1312203003144 is a wasteful number, since it uses less digits than its factorization.

1312203003144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758930 (or 758926 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1312203003144 its reverse (4413003022131), we get a palindrome (5725206025275).

The spelling of 1312203003144 in words is "one trillion, three hundred twelve billion, two hundred three million, three thousand, one hundred forty-four".