1203312321133 has 16 divisors (see below), whose sum is σ = 1318294252800. Its totient is φ = 1091546182080.

The previous prime is 1203312321109. The next prime is 1203312321157. The reversal of 1203312321133 is 3311232133021.

It is an interprime number because it is at equal distance from previous prime (1203312321109) and next prime (1203312321157).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203312321133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203312321098 and 1203312321107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203312381133) 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, 1961548 + ... + 2500858.

It is an arithmetic number, because the mean of its divisors is an integer number (82393390800).

Almost surely, 2^{1203312321133} is an apocalyptic number.

1203312321133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1203312321133 is a deficient number, since it is larger than the sum of its proper divisors (114981931667).

1203312321133 is a wasteful number, since it uses less digits than its factorization.

1203312321133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542292.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1203312321133 its reverse (3311232133021), we get a palindrome (4514544454154).

The spelling of 1203312321133 in words is "one trillion, two hundred three billion, three hundred twelve million, three hundred twenty-one thousand, one hundred thirty-three".