113231142240 has 96 divisors (see below), whose sum is σ = 356895092736. Its totient is φ = 30176601600.

The previous prime is 113231142187. The next prime is 113231142307. The reversal of 113231142240 is 42241132311.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×113231142240² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 113231142240.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 727315 + ... + 869165.

It is an arithmetic number, because the mean of its divisors is an integer number (3717657216).

Almost surely, 2^113231142240 is an apocalyptic number.

113231142240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113231142240 is an abundant number, since it is smaller than the sum of its proper divisors (243663950496).

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

113231142240 is a wasteful number, since it uses less digits than its factorization.

113231142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143532 (or 143524 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 113231142240 its reverse (42241132311), we get a palindrome (155472274551).

The spelling of 113231142240 in words is "one hundred thirteen billion, two hundred thirty-one million, one hundred forty-two thousand, two hundred forty".