121100123210393 has 2 divisors, whose sum is σ = 121100123210394. Its totient is φ = 121100123210392.

The previous prime is 121100123210257. The next prime is 121100123210483. The reversal of 121100123210393 is 393012321001121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99610519977049 + 21489603233344 = 9980507^2 + 4635688^2 .

It is a cyclic number.

It is not a de Polignac number, because 121100123210393 - 2¹⁸ = 121100122948249 is a prime.

It is a super-3 number, since 3×121100123210393³ (a number of 43 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121100123710393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550061605196 + 60550061605197.

It is an arithmetic number, because the mean of its divisors is an integer number (60550061605197).

Almost surely, 2^{121100123210393} is an apocalyptic number.

It is an amenable number.

121100123210393 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100123210393 is an equidigital number, since it uses as much as digits as its factorization.

121100123210393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 121100123210393 in words is "one hundred twenty-one trillion, one hundred billion, one hundred twenty-three million, two hundred ten thousand, three hundred ninety-three".