113203033020 has 216 divisors, whose sum is σ = 435758542128. Its totient is φ = 23522688000.

The previous prime is 113203032989. The next prime is 113203033061. The reversal of 113203033020 is 20330302311.

113203033020 is a `hidden beast` number, since 11 + 320 + 3 + 0 + 330 + 2 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 113203032984 and 113203033002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 486381 + ... + 680420.

It is an arithmetic number, because the mean of its divisors is an integer number (2017400658).

Almost surely, 2^113203033020 is an apocalyptic number.

113203033020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113203033020 is an abundant number, since it is smaller than the sum of its proper divisors (322555509108).

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

113203033020 is a wasteful number, since it uses less digits than its factorization.

113203033020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166841 (or 1166829 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 113203033020 its reverse (20330302311), we get a palindrome (133533335331).

The spelling of 113203033020 in words is "one hundred thirteen billion, two hundred three million, thirty-three thousand, twenty".