113430021012 has 216 divisors, whose sum is σ = 379681428672. Its totient is φ = 28181260800.

The previous prime is 113430020999. The next prime is 113430021037. The reversal of 113430021012 is 210120034311.

113430021012 is a `hidden beast` number, since 1 + 13 + 430 + 0 + 210 + 12 = 666.

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

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, 319212 + ... + 573372.

It is an arithmetic number, because the mean of its divisors is an integer number (1757784392).

Almost surely, 2^113430021012 is an apocalyptic number.

113430021012 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 113430021012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189840714336).

113430021012 is an abundant number, since it is smaller than the sum of its proper divisors (266251407660).

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

113430021012 is a wasteful number, since it uses less digits than its factorization.

113430021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254219 (or 254207 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 113430021012 its reverse (210120034311), we get a palindrome (323550055323).

The spelling of 113430021012 in words is "one hundred thirteen billion, four hundred thirty million, twenty-one thousand, twelve".