1123001131328 has 14 divisors (see below), whose sum is σ = 2228455370106. Its totient is φ = 561500565632.

The previous prime is 1123001131321. The next prime is 1123001131333. The reversal of 1123001131328 is 8231311003211.

It can be written as a sum of positive squares in only one way, i.e., 1095773491264 + 27227640064 = 1046792^2 + 165008^2 .

It is a super-2 number, since 2×1123001131328² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123001131297 and 1123001131306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123001131321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8773446275 + ... + 8773446402.

It is an arithmetic number, because the mean of its divisors is an integer number (159175383579).

Almost surely, 2^{1123001131328} is an apocalyptic number.

It is an amenable number.

1123001131328 is a deficient number, since it is larger than the sum of its proper divisors (1105454238778).

1123001131328 is an equidigital number, since it uses as much as digits as its factorization.

1123001131328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17546892689 (or 17546892679 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 1123001131328 its reverse (8231311003211), we get a palindrome (9354312134539).

The spelling of 1123001131328 in words is "one trillion, one hundred twenty-three billion, one million, one hundred thirty-one thousand, three hundred twenty-eight".