1123164023181 has 8 divisors (see below), whose sum is σ = 1522934268960. Its totient is φ = 736084896432.

The previous prime is 1123164023171. The next prime is 1123164023197. The reversal of 1123164023181 is 1813204613211.

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

It is a de Polignac number, because none of the positive numbers 2^k-1123164023181 is a prime.

It is a super-2 number, since 2×1123164023181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123164023141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3172779550 + ... + 3172779903.

It is an arithmetic number, because the mean of its divisors is an integer number (190366783620).

Almost surely, 2^{1123164023181} is an apocalyptic number.

It is an amenable number.

1123164023181 is a deficient number, since it is larger than the sum of its proper divisors (399770245779).

1123164023181 is an equidigital number, since it uses as much as digits as its factorization.

1123164023181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6345559515.

The product of its (nonzero) digits is 6912, while the sum is 33.

Adding to 1123164023181 its reverse (1813204613211), we get a palindrome (2936368636392).

The spelling of 1123164023181 in words is "one trillion, one hundred twenty-three billion, one hundred sixty-four million, twenty-three thousand, one hundred eighty-one".