1123203220102 has 4 divisors (see below), whose sum is σ = 1684804830156. Its totient is φ = 561601610050.

The previous prime is 1123203220019. The next prime is 1123203220121. The reversal of 1123203220102 is 2010223023211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1123203220102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280800805024 + ... + 280800805027.

It is an arithmetic number, because the mean of its divisors is an integer number (421201207539).

Almost surely, 2^{1123203220102} is an apocalyptic number.

1123203220102 is a deficient number, since it is larger than the sum of its proper divisors (561601610054).

1123203220102 is an equidigital number, since it uses as much as digits as its factorization.

1123203220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561601610053.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1123203220102 its reverse (2010223023211), we get a palindrome (3133426243313).

The spelling of 1123203220102 in words is "one trillion, one hundred twenty-three billion, two hundred three million, two hundred twenty thousand, one hundred two".