113385023978 has 4 divisors (see below), whose sum is σ = 170077535970. Its totient is φ = 56692511988.

The previous prime is 113385023963. The next prime is 113385024001. The reversal of 113385023978 is 879320583311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 102065553529 + 11319470449 = 319477^2 + 106393^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28346255993 + ... + 28346255996.

Almost surely, 2^113385023978 is an apocalyptic number.

113385023978 is a deficient number, since it is larger than the sum of its proper divisors (56692511992).

113385023978 is an equidigital number, since it uses as much as digits as its factorization.

113385023978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56692511991.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 113385023978 in words is "one hundred thirteen billion, three hundred eighty-five million, twenty-three thousand, nine hundred seventy-eight".