121323383 has 2 divisors, whose sum is σ = 121323384. Its totient is φ = 121323382.

The previous prime is 121323347. The next prime is 121323409. The reversal of 121323383 is 383323121.

It is an a-pointer prime, because the next prime (121323409) can be obtained adding 121323383 to its sum of digits (26).

It is a strong prime.

It is an emirp because it is prime and its reverse (383323121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121323383 - 2²² = 117129079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121323313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661691 + 60661692.

It is an arithmetic number, because the mean of its divisors is an integer number (60661692).

Almost surely, 2^121323383 is an apocalyptic number.

121323383 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323383 is an equidigital number, since it uses as much as digits as its factorization.

121323383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 121323383 is about 11014.6894191348. The cubic root of 121323383 is about 495.0489806308.

The spelling of 121323383 in words is "one hundred twenty-one million, three hundred twenty-three thousand, three hundred eighty-three".