121005349 has 2 divisors, whose sum is σ = 121005350. Its totient is φ = 121005348.

The previous prime is 121005347. The next prime is 121005383. The reversal of 121005349 is 943500121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118701025 + 2304324 = 10895^2 + 1518^2 .

It is a cyclic number.

It is not a de Polignac number, because 121005349 - 2¹ = 121005347 is a prime.

It is a super-2 number, since 2×121005349² = 29284588973223602, which contains 22 as substring.

Together with 121005347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121005341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60502674 + 60502675.

It is an arithmetic number, because the mean of its divisors is an integer number (60502675).

Almost surely, 2^121005349 is an apocalyptic number.

It is an amenable number.

121005349 is a deficient number, since it is larger than the sum of its proper divisors (1).

121005349 is an equidigital number, since it uses as much as digits as its factorization.

121005349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 121005349 is about 11000.2431336766. The cubic root of 121005349 is about 494.6160325430.

The spelling of 121005349 in words is "one hundred twenty-one million, five thousand, three hundred forty-nine".