1123030113131 has 4 divisors (see below), whose sum is σ = 1134149223264. Its totient is φ = 1111911003000.

The previous prime is 1123030113119. The next prime is 1123030113199. The reversal of 1123030113131 is 1313110303211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123030113131 is a prime.

It is a super-2 number, since 2×1123030113131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123030113731) 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, 5559554915 + ... + 5559555116.

It is an arithmetic number, because the mean of its divisors is an integer number (283537305816).

Almost surely, 2^{1123030113131} is an apocalyptic number.

1123030113131 is a deficient number, since it is larger than the sum of its proper divisors (11119110133).

1123030113131 is a wasteful number, since it uses less digits than its factorization.

1123030113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11119110132.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1123030113131 its reverse (1313110303211), we get a palindrome (2436140416342).

The spelling of 1123030113131 in words is "one trillion, one hundred twenty-three billion, thirty million, one hundred thirteen thousand, one hundred thirty-one".