113111123000 has 128 divisors (see below), whose sum is σ = 278910216000. Its totient is φ = 42817075200.

The previous prime is 113111122991. The next prime is 113111123051. The reversal of 113111123000 is 321111311.

It is a happy number.

It is a super-2 number, since 2×113111123000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21448364 + ... + 21453636.

Almost surely, 2^113111123000 is an apocalyptic number.

113111123000 is a gapful number since it is divisible by the number (10) 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 113111123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139455108000).

113111123000 is an abundant number, since it is smaller than the sum of its proper divisors (165799093000).

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

113111123000 is a wasteful number, since it uses less digits than its factorization.

113111123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442 (or 6428 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 113111123000 its reverse (321111311), we get a palindrome (113432234311).

It can be divided in two parts, 11311 and 1123000, that added together give a palindrome (1134311).

The spelling of 113111123000 in words is "one hundred thirteen billion, one hundred eleven million, one hundred twenty-three thousand".