1123432420202 has 4 divisors (see below), whose sum is σ = 1685148630306. Its totient is φ = 561716210100.

The previous prime is 1123432420193. The next prime is 1123432420207. The reversal of 1123432420202 is 2020242343211.

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., 1115032514401 + 8399905801 = 1055951^2 + 91651^2 .

It is not an unprimeable number, because it can be changed into a prime (1123432420207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280858105049 + ... + 280858105052.

Almost surely, 2^{1123432420202} is an apocalyptic number.

1123432420202 is a deficient number, since it is larger than the sum of its proper divisors (561716210104).

1123432420202 is an equidigital number, since it uses as much as digits as its factorization.

1123432420202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561716210103.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1123432420202 its reverse (2020242343211), we get a palindrome (3143674763413).

The spelling of 1123432420202 in words is "one trillion, one hundred twenty-three billion, four hundred thirty-two million, four hundred twenty thousand, two hundred two".