113123031210 has 144 divisors (see below), whose sum is σ = 343763795232. Its totient is φ = 25733937600.

The previous prime is 113123031199. The next prime is 113123031299. The reversal of 113123031210 is 12130321311.

113123031210 is a `hidden beast` number, since 1 + 1 + 312 + 30 + 312 + 10 = 666.

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

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, 869725 + ... + 991295.

It is an arithmetic number, because the mean of its divisors is an integer number (2387248578).

Almost surely, 2^113123031210 is an apocalyptic number.

113123031210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 113123031210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171881897616).

113123031210 is an abundant number, since it is smaller than the sum of its proper divisors (230640764022).

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

113123031210 is a wasteful number, since it uses less digits than its factorization.

113123031210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121809 (or 121799 counting only the distinct ones).

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

Adding to 113123031210 its reverse (12130321311), we get a palindrome (125253352521).

The spelling of 113123031210 in words is "one hundred thirteen billion, one hundred twenty-three million, thirty-one thousand, two hundred ten".