1133123123131 has 4 divisors (see below), whose sum is σ = 1134201262264. Its totient is φ = 1132044984000.

The previous prime is 1133123123129. The next prime is 1133123123179. The reversal of 1133123123131 is 1313213213311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1133123123131 - 2¹ = 1133123123129 is a prime.

It is a super-2 number, since 2×1133123123131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1133123123096 and 1133123123105.

It is not an unprimeable number, because it can be changed into a prime (1133133123131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539067990 + ... + 539070091.

It is an arithmetic number, because the mean of its divisors is an integer number (283550315566).

Almost surely, 2^{1133123123131} is an apocalyptic number.

1133123123131 is a deficient number, since it is larger than the sum of its proper divisors (1078139133).

1133123123131 is a wasteful number, since it uses less digits than its factorization.

1133123123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078139132.

The product of its digits is 972, while the sum is 25.

Adding to 1133123123131 its reverse (1313213213311), we get a palindrome (2446336336442).

The spelling of 1133123123131 in words is "one trillion, one hundred thirty-three billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred thirty-one".