1123020203032 has 128 divisors (see below), whose sum is σ = 2628357580800. Its totient is φ = 437984921088.

The previous prime is 1123020203029. The next prime is 1123020203047. The reversal of 1123020203032 is 2303020203211.

It is a super-2 number, since 2×1123020203032² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38921203 + ... + 38950045.

It is an arithmetic number, because the mean of its divisors is an integer number (20534043600).

Almost surely, 2^{1123020203032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123020203032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314178790400).

1123020203032 is an abundant number, since it is smaller than the sum of its proper divisors (1505337377768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123020203032 is a wasteful number, since it uses less digits than its factorization.

1123020203032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29625 (or 29621 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1123020203032 its reverse (2303020203211), we get a palindrome (3426040406243).

The spelling of 1123020203032 in words is "one trillion, one hundred twenty-three billion, twenty million, two hundred three thousand, thirty-two".