113121321010 has 16 divisors (see below), whose sum is σ = 208584680472. Its totient is φ = 44144905600.

The previous prime is 113121320993. The next prime is 113121321011. The reversal of 113121321010 is 10123121311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42230661001 + 70890660009 = 205501^2 + 266253^2 .

It is not an unprimeable number, because it can be changed into a prime (113121321011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137952421 + ... + 137953240.

Almost surely, 2^113121321010 is an apocalyptic number.

113121321010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113121321010 is a deficient number, since it is larger than the sum of its proper divisors (95463359462).

113121321010 is a wasteful number, since it uses less digits than its factorization.

113121321010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275905709.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 113121321010 its reverse (10123121311), we get a palindrome (123244442321).

The spelling of 113121321010 in words is "one hundred thirteen billion, one hundred twenty-one million, three hundred twenty-one thousand, ten".