113031019978 has 8 divisors (see below), whose sum is σ = 169548115968. Its totient is φ = 56514981324.

The previous prime is 113031019967. The next prime is 113031020057. The reversal of 113031019978 is 879910130311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×113031019978² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107575 + ... + 487477.

It is an arithmetic number, because the mean of its divisors is an integer number (21193514496).

Almost surely, 2^113031019978 is an apocalyptic number.

113031019978 is a deficient number, since it is larger than the sum of its proper divisors (56517095990).

113031019978 is a wasteful number, since it uses less digits than its factorization.

113031019978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528668.

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 113031019978 in words is "one hundred thirteen billion, thirty-one million, nineteen thousand, nine hundred seventy-eight".