110913721 has 2 divisors, whose sum is σ = 110913722. Its totient is φ = 110913720.

The previous prime is 110913703. The next prime is 110913731. The reversal of 110913721 is 127319011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62805625 + 48108096 = 7925^2 + 6936^2 .

It is a cyclic number.

It is not a de Polignac number, because 110913721 - 2⁵ = 110913689 is a prime.

It is a super-3 number, since 3×110913721³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (110913701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55456860 + 55456861.

It is an arithmetic number, because the mean of its divisors is an integer number (55456861).

Almost surely, 2^110913721 is an apocalyptic number.

It is an amenable number.

110913721 is a deficient number, since it is larger than the sum of its proper divisors (1).

110913721 is an equidigital number, since it uses as much as digits as its factorization.

110913721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 110913721 is about 10531.5583367325. The cubic root of 110913721 is about 480.4650022171.

The spelling of 110913721 in words is "one hundred ten million, nine hundred thirteen thousand, seven hundred twenty-one".