11203312102 has 4 divisors (see below), whose sum is σ = 16804968156. Its totient is φ = 5601656050.

The previous prime is 11203312097. The next prime is 11203312129. The reversal of 11203312102 is 20121330211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20121330211 = 569 ⋅35362619.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2800828024 + ... + 2800828027.

It is an arithmetic number, because the mean of its divisors is an integer number (4201242039).

Almost surely, 2^11203312102 is an apocalyptic number.

11203312102 is a deficient number, since it is larger than the sum of its proper divisors (5601656054).

11203312102 is an equidigital number, since it uses as much as digits as its factorization.

11203312102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601656053.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11203312102 its reverse (20121330211), we get a palindrome (31324642313).

The spelling of 11203312102 in words is "eleven billion, two hundred three million, three hundred twelve thousand, one hundred two".