1123203132131 has 16 divisors (see below), whose sum is σ = 1195544448000. Its totient is φ = 1053612824160.

The previous prime is 1123203132091. The next prime is 1123203132167. The reversal of 1123203132131 is 1312313023211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123203132131 is a prime.

It is a super-2 number, since 2×1123203132131² (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 = 1123203132097 and 1123203132106.

It is not an unprimeable number, because it can be changed into a prime (1123209132131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3981881 + ... + 4254618.

It is an arithmetic number, because the mean of its divisors is an integer number (74721528000).

Almost surely, 2^{1123203132131} is an apocalyptic number.

1123203132131 is a deficient number, since it is larger than the sum of its proper divisors (72341315869).

1123203132131 is an equidigital number, since it uses as much as digits as its factorization.

1123203132131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8236666.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1123203132131 its reverse (1312313023211), we get a palindrome (2435516155342).

The spelling of 1123203132131 in words is "one trillion, one hundred twenty-three billion, two hundred three million, one hundred thirty-two thousand, one hundred thirty-one".