111354121 has 2 divisors, whose sum is σ = 111354122. Its totient is φ = 111354120.

The previous prime is 111354101. The next prime is 111354143. The reversal of 111354121 is 121453111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73359225 + 37994896 = 8565^2 + 6164^2 .

It is a cyclic number.

It is not a de Polignac number, because 111354121 - 2⁷ = 111353993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111354101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55677060 + 55677061.

It is an arithmetic number, because the mean of its divisors is an integer number (55677061).

Almost surely, 2^111354121 is an apocalyptic number.

It is an amenable number.

111354121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111354121 is an equidigital number, since it uses as much as digits as its factorization.

111354121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 19.

The square root of 111354121 is about 10552.4462092919. The cubic root of 111354121 is about 481.1000824760.

The spelling of 111354121 in words is "one hundred eleven million, three hundred fifty-four thousand, one hundred twenty-one".