1123321320131 has 8 divisors (see below), whose sum is σ = 1192028520960. Its totient is φ = 1056269714632.

The previous prime is 1123321320073. The next prime is 1123321320179. The reversal of 1123321320131 is 1310231233211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123321320131 is a prime.

It is a super-2 number, since 2×1123321320131² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123321320097 and 1123321320106.

It is not an unprimeable number, because it can be changed into a prime (1123321320431) 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 7 ways as a sum of consecutive naturals, for example, 413897435 + ... + 413900148.

It is an arithmetic number, because the mean of its divisors is an integer number (149003565120).

Almost surely, 2^{1123321320131} is an apocalyptic number.

1123321320131 is a deficient number, since it is larger than the sum of its proper divisors (68707200829).

1123321320131 is an equidigital number, since it uses as much as digits as its factorization.

1123321320131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827797665.

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

Adding to 1123321320131 its reverse (1310231233211), we get a palindrome (2433552553342).

The spelling of 1123321320131 in words is "one trillion, one hundred twenty-three billion, three hundred twenty-one million, three hundred twenty thousand, one hundred thirty-one".