121155043 has 2 divisors, whose sum is σ = 121155044. Its totient is φ = 121155042.

The previous prime is 121154987. The next prime is 121155059. The reversal of 121155043 is 340551121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121155043 is a prime.

It is not a weakly prime, because it can be changed into another prime (121155443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60577521 + 60577522.

It is an arithmetic number, because the mean of its divisors is an integer number (60577522).

Almost surely, 2^121155043 is an apocalyptic number.

121155043 is a deficient number, since it is larger than the sum of its proper divisors (1).

121155043 is an equidigital number, since it uses as much as digits as its factorization.

121155043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 121155043 is about 11007.0451529918. The cubic root of 121155043 is about 494.8199093199.

The spelling of 121155043 in words is "one hundred twenty-one million, one hundred fifty-five thousand, forty-three".