121195423 has 2 divisors, whose sum is σ = 121195424. Its totient is φ = 121195422.

The previous prime is 121195411. The next prime is 121195439. The reversal of 121195423 is 324591121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121195423 - 2⁵ = 121195391 is a prime.

It is a super-2 number, since 2×121195423² = 29376661112297858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121195391 and 121195400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121195453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60597711 + 60597712.

It is an arithmetic number, because the mean of its divisors is an integer number (60597712).

Almost surely, 2^121195423 is an apocalyptic number.

121195423 is a deficient number, since it is larger than the sum of its proper divisors (1).

121195423 is an equidigital number, since it uses as much as digits as its factorization.

121195423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 121195423 is about 11008.8792799267. The cubic root of 121195423 is about 494.8748763771.

The spelling of 121195423 in words is "one hundred twenty-one million, one hundred ninety-five thousand, four hundred twenty-three".