113203110312 has 96 divisors (see below), whose sum is σ = 319064054400. Its totient is φ = 36214910592.

The previous prime is 113203110301. The next prime is 113203110323. The reversal of 113203110312 is 213011302311.

113203110312 is a `hidden beast` number, since 1 + 1 + 320 + 31 + 1 + 0 + 312 = 666.

It is an interprime number because it is at equal distance from previous prime (113203110301) and next prime (113203110323).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186373 + ... + 511019.

It is an arithmetic number, because the mean of its divisors is an integer number (3323583900).

Almost surely, 2^113203110312 is an apocalyptic number.

113203110312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113203110312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159532027200).

113203110312 is an abundant number, since it is smaller than the sum of its proper divisors (205860944088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113203110312 is a wasteful number, since it uses less digits than its factorization.

113203110312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324855 (or 324848 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 113203110312 its reverse (213011302311), we get a palindrome (326214412623).

The spelling of 113203110312 in words is "one hundred thirteen billion, two hundred three million, one hundred ten thousand, three hundred twelve".