121012343 has 2 divisors, whose sum is σ = 121012344. Its totient is φ = 121012342.

The previous prime is 121012327. The next prime is 121012379. The reversal of 121012343 is 343210121.

121012343 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121012343 - 2⁴ = 121012327 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121012393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506171 + 60506172.

It is an arithmetic number, because the mean of its divisors is an integer number (60506172).

Almost surely, 2^121012343 is an apocalyptic number.

121012343 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012343 is an equidigital number, since it uses as much as digits as its factorization.

121012343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 121012343 is about 11000.5610311475. The cubic root of 121012343 is about 494.6255618129.

Adding to 121012343 its reverse (343210121), we get a palindrome (464222464).

The spelling of 121012343 in words is "one hundred twenty-one million, twelve thousand, three hundred forty-three".