1312023202133 has 16 divisors (see below), whose sum is σ = 1530511180800. Its totient is φ = 1124256914928.

The previous prime is 1312023202111. The next prime is 1312023202159. The reversal of 1312023202133 is 3312023202131.

It is not a de Polignac number, because 1312023202133 - 2³² = 1307728234837 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1312023202099 and 1312023202108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312023202163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589916 + ... + 1723962.

It is an arithmetic number, because the mean of its divisors is an integer number (95656948800).

Almost surely, 2^{1312023202133} is an apocalyptic number.

It is an amenable number.

1312023202133 is a deficient number, since it is larger than the sum of its proper divisors (218487978667).

1312023202133 is an equidigital number, since it uses as much as digits as its factorization.

1312023202133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137441 (or 1137427 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1312023202133 its reverse (3312023202131), we get a palindrome (4624046404264).

The spelling of 1312023202133 in words is "one trillion, three hundred twelve billion, twenty-three million, two hundred two thousand, one hundred thirty-three".