113121382 has 16 divisors (see below), whose sum is σ = 186525504. Its totient is φ = 51025000.

The previous prime is 113121361. The next prime is 113121401. The reversal of 113121382 is 283121311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16744 + ... + 22507.

It is an arithmetic number, because the mean of its divisors is an integer number (11657844).

Almost surely, 2^113121382 is an apocalyptic number.

113121382 is a deficient number, since it is larger than the sum of its proper divisors (73404122).

113121382 is a wasteful number, since it uses less digits than its factorization.

113121382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39395.

The product of its digits is 288, while the sum is 22.

The square root of 113121382 is about 10635.8536093724. The cubic root of 113121382 is about 483.6318575433.

Adding to 113121382 its reverse (283121311), we get a palindrome (396242693).

The spelling of 113121382 in words is "one hundred thirteen million, one hundred twenty-one thousand, three hundred eighty-two".