1123132220553 has 32 divisors (see below), whose sum is σ = 1814237381376. Its totient is φ = 603329200128.

The previous prime is 1123132220549. The next prime is 1123132220599. The reversal of 1123132220553 is 3550222313211.

It is not a de Polignac number, because 1123132220553 - 2² = 1123132220549 is a prime.

It is a super-3 number, since 3×1123132220553³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1123132220553.

It is not an unprimeable number, because it can be changed into a prime (1123132220503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1539576 + ... + 2148617.

It is an arithmetic number, because the mean of its divisors is an integer number (56694918168).

Almost surely, 2^{1123132220553} is an apocalyptic number.

It is an amenable number.

1123132220553 is a deficient number, since it is larger than the sum of its proper divisors (691105160823).

1123132220553 is a wasteful number, since it uses less digits than its factorization.

1123132220553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689073.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 1123132220553 its reverse (3550222313211), we get a palindrome (4673354533764).

The spelling of 1123132220553 in words is "one trillion, one hundred twenty-three billion, one hundred thirty-two million, two hundred twenty thousand, five hundred fifty-three".