1243142123133 has 8 divisors (see below), whose sum is σ = 1663179906528. Its totient is φ = 825932877584.

The previous prime is 1243142123117. The next prime is 1243142123137. The reversal of 1243142123133 is 3313212413421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1243142123133 - 2⁴ = 1243142123117 is a prime.

It is a super-3 number, since 3×1243142123133³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1243142123133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243142123137) 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, 707133435 + ... + 707135192.

It is an arithmetic number, because the mean of its divisors is an integer number (207897488316).

Almost surely, 2^{1243142123133} is an apocalyptic number.

It is an amenable number.

1243142123133 is a deficient number, since it is larger than the sum of its proper divisors (420037783395).

1243142123133 is a wasteful number, since it uses less digits than its factorization.

1243142123133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414268923.

The product of its digits is 10368, while the sum is 30.

Adding to 1243142123133 its reverse (3313212413421), we get a palindrome (4556354536554).

The spelling of 1243142123133 in words is "one trillion, two hundred forty-three billion, one hundred forty-two million, one hundred twenty-three thousand, one hundred thirty-three".