113203121012 has 12 divisors (see below), whose sum is σ = 202937302596. Its totient is φ = 55221034560.

The previous prime is 113203120963. The next prime is 113203121027. The reversal of 113203121012 is 210121302311.

It can be written as a sum of positive squares in 2 ways, for example, as 42800989456 + 70402131556 = 206884^2 + 265334^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345131303 + ... + 345131630.

It is an arithmetic number, because the mean of its divisors is an integer number (16911441883).

Almost surely, 2^113203121012 is an apocalyptic number.

It is an amenable number.

113203121012 is a deficient number, since it is larger than the sum of its proper divisors (89734181584).

113203121012 is a wasteful number, since it uses less digits than its factorization.

113203121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690262978 (or 690262976 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 113203121012 its reverse (210121302311), we get a palindrome (323324423323).

The spelling of 113203121012 in words is "one hundred thirteen billion, two hundred three million, one hundred twenty-one thousand, twelve".