113131378 has 16 divisors (see below), whose sum is σ = 175855680. Its totient is φ = 54519696.

The previous prime is 113131373. The next prime is 113131399. The reversal of 113131378 is 873131311.

It is not an unprimeable number, because it can be changed into a prime (113131373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40825 + ... + 43507.

It is an arithmetic number, because the mean of its divisors is an integer number (10990980).

Almost surely, 2^113131378 is an apocalyptic number.

113131378 is a deficient number, since it is larger than the sum of its proper divisors (62724302).

113131378 is a wasteful number, since it uses less digits than its factorization.

113131378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441.

The product of its digits is 1512, while the sum is 28.

The square root of 113131378 is about 10636.3235189609. The cubic root of 113131378 is about 483.6461025415.

Adding to 113131378 its reverse (873131311), we get a palindrome (986262689).

The spelling of 113131378 in words is "one hundred thirteen million, one hundred thirty-one thousand, three hundred seventy-eight".