116721043 has 2 divisors, whose sum is σ = 116721044. Its totient is φ = 116721042.

The previous prime is 116721023. The next prime is 116721079. The reversal of 116721043 is 340127611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116721043 - 2⁹ = 116720531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 116720999 and 116721017.

It is not a weakly prime, because it can be changed into another prime (116721013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58360521 + 58360522.

It is an arithmetic number, because the mean of its divisors is an integer number (58360522).

Almost surely, 2^116721043 is an apocalyptic number.

116721043 is a deficient number, since it is larger than the sum of its proper divisors (1).

116721043 is an equidigital number, since it uses as much as digits as its factorization.

116721043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 116721043 is about 10803.7513392340. The cubic root of 116721043 is about 488.7083055638.

Adding to 116721043 its reverse (340127611), we get a palindrome (456848654).

The spelling of 116721043 in words is "one hundred sixteen million, seven hundred twenty-one thousand, forty-three".