1123420035272 has 32 divisors (see below), whose sum is σ = 2163420316800. Its totient is φ = 546509041344.

The previous prime is 1123420035251. The next prime is 1123420035277. The reversal of 1123420035272 is 2725300243211.

It is a super-2 number, since 2×1123420035272² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123420035277) 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, 11502179 + ... + 11599437.

It is an arithmetic number, because the mean of its divisors is an integer number (67606884900).

Almost surely, 2^{1123420035272} is an apocalyptic number.

It is an amenable number.

1123420035272 is a deficient number, since it is larger than the sum of its proper divisors (1040000281528).

1123420035272 is a wasteful number, since it uses less digits than its factorization.

1123420035272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136325 (or 136321 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 1123420035272 its reverse (2725300243211), we get a palindrome (3848720278483).

The spelling of 1123420035272 in words is "one trillion, one hundred twenty-three billion, four hundred twenty million, thirty-five thousand, two hundred seventy-two".