121954043 has 2 divisors, whose sum is σ = 121954044. Its totient is φ = 121954042.

The previous prime is 121953973. The next prime is 121954051. The reversal of 121954043 is 340459121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121954043 - 2¹⁴ = 121937659 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121953997 and 121954015.

It is not a weakly prime, because it can be changed into another prime (121954543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60977021 + 60977022.

It is an arithmetic number, because the mean of its divisors is an integer number (60977022).

Almost surely, 2^121954043 is an apocalyptic number.

121954043 is a deficient number, since it is larger than the sum of its proper divisors (1).

121954043 is an equidigital number, since it uses as much as digits as its factorization.

121954043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 121954043 is about 11043.2804455922. The cubic root of 121954043 is about 495.9052821108.

The spelling of 121954043 in words is "one hundred twenty-one million, nine hundred fifty-four thousand, forty-three".