1123103021131 has 12 divisors (see below), whose sum is σ = 1406964225072. Its totient is φ = 888608983248.

The previous prime is 1123103021123. The next prime is 1123103021177. The reversal of 1123103021131 is 1311203013211.

It is not a de Polignac number, because 1123103021131 - 2³ = 1123103021123 is a prime.

It is a super-2 number, since 2×1123103021131² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123103021099 and 1123103021108.

It is not an unprimeable number, because it can be changed into a prime (1123103021191) 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 11 ways as a sum of consecutive naturals, for example, 881555895 + ... + 881557168.

It is an arithmetic number, because the mean of its divisors is an integer number (117247018756).

Almost surely, 2^{1123103021131} is an apocalyptic number.

1123103021131 is a deficient number, since it is larger than the sum of its proper divisors (283861203941).

1123103021131 is a wasteful number, since it uses less digits than its factorization.

1123103021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763113090 (or 1763113083 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1123103021131 its reverse (1311203013211), we get a palindrome (2434306034342).

The spelling of 1123103021131 in words is "one trillion, one hundred twenty-three billion, one hundred three million, twenty-one thousand, one hundred thirty-one".