1123202012131 has 4 divisors (see below), whose sum is σ = 1137419759200. Its totient is φ = 1108984265064.

The previous prime is 1123202012117. The next prime is 1123202012203. The reversal of 1123202012131 is 1312102023211.

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 1123202012131 - 2⁹ = 1123202011619 is a prime.

It is a super-3 number, since 3×1123202012131³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123202012099 and 1123202012108.

It is not an unprimeable number, because it can be changed into a prime (1123202012111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7108873416 + ... + 7108873573.

It is an arithmetic number, because the mean of its divisors is an integer number (284354939800).

Almost surely, 2^{1123202012131} is an apocalyptic number.

1123202012131 is a deficient number, since it is larger than the sum of its proper divisors (14217747069).

1123202012131 is an equidigital number, since it uses as much as digits as its factorization.

1123202012131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14217747068.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1123202012131 its reverse (1312102023211), we get a palindrome (2435304035342).

The spelling of 1123202012131 in words is "one trillion, one hundred twenty-three billion, two hundred two million, twelve thousand, one hundred thirty-one".