1312054420203 has 6 divisors (see below), whose sum is σ = 1895189718084. Its totient is φ = 874702946796.

The previous prime is 1312054420189. The next prime is 1312054420241. The reversal of 1312054420203 is 3020244502131.

1312054420203 is a `hidden beast` number, since 1 + 3 + 12 + 0 + 5 + 442 + 0 + 203 = 666.

It is not a de Polignac number, because 1312054420203 - 2⁹ = 1312054419691 is a prime.

It is a super-2 number, since 2×1312054420203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312054420003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72891912225 + ... + 72891912242.

It is an arithmetic number, because the mean of its divisors is an integer number (315864953014).

Almost surely, 2^{1312054420203} is an apocalyptic number.

1312054420203 is a deficient number, since it is larger than the sum of its proper divisors (583135297881).

1312054420203 is a wasteful number, since it uses less digits than its factorization.

1312054420203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145783824473 (or 145783824470 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1312054420203 its reverse (3020244502131), we get a palindrome (4332298922334).

The spelling of 1312054420203 in words is "one trillion, three hundred twelve billion, fifty-four million, four hundred twenty thousand, two hundred three".