1123230220202 has 4 divisors (see below), whose sum is σ = 1684845330306. Its totient is φ = 561615110100.

The previous prime is 1123230220103. The next prime is 1123230220267. The reversal of 1123230220202 is 2020220323211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 754915961881 + 368314258321 = 868859^2 + 606889^2 .

It is a super-2 number, since 2×1123230220202² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280807555049 + ... + 280807555052.

Almost surely, 2^{1123230220202} is an apocalyptic number.

1123230220202 is a deficient number, since it is larger than the sum of its proper divisors (561615110104).

1123230220202 is an equidigital number, since it uses as much as digits as its factorization.

1123230220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561615110103.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1123230220202 its reverse (2020220323211), we get a palindrome (3143450543413).

The spelling of 1123230220202 in words is "one trillion, one hundred twenty-three billion, two hundred thirty million, two hundred twenty thousand, two hundred two".