113111401026 has 64 divisors (see below), whose sum is σ = 247621570560. Its totient is φ = 34236993600.

The previous prime is 113111400959. The next prime is 113111401079. The reversal of 113111401026 is 620104111311.

It is a junction number, because it is equal to n+sod(n) for n = 113111400993 and 113111401011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1166515 + ... + 1259753.

It is an arithmetic number, because the mean of its divisors is an integer number (3869087040).

Almost surely, 2^113111401026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113111401026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123810785280).

113111401026 is an abundant number, since it is smaller than the sum of its proper divisors (134510169534).

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

113111401026 is a wasteful number, since it uses less digits than its factorization.

113111401026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93511.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 113111401026 its reverse (620104111311), we get a palindrome (733215512337).

The spelling of 113111401026 in words is "one hundred thirteen billion, one hundred eleven million, four hundred one thousand, twenty-six".