113968028381 has 2 divisors, whose sum is σ = 113968028382. Its totient is φ = 113968028380.

The previous prime is 113968028359. The next prime is 113968028389. The reversal of 113968028381 is 183820869311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110805765625 + 3162262756 = 332875^2 + 56234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113968028381 is a prime.

It is a super-2 number, since 2×113968028381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113968028389) by changing a digit.

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 as a sum of consecutive naturals, namely, 56984014190 + 56984014191.

It is an arithmetic number, because the mean of its divisors is an integer number (56984014191).

Almost surely, 2^113968028381 is an apocalyptic number.

It is an amenable number.

113968028381 is a deficient number, since it is larger than the sum of its proper divisors (1).

113968028381 is an equidigital number, since it uses as much as digits as its factorization.

113968028381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 113968028381 in words is "one hundred thirteen billion, nine hundred sixty-eight million, twenty-eight thousand, three hundred eighty-one".