121302423 has 24 divisors (see below), whose sum is σ = 192082176. Its totient is φ = 73155600.

The previous prime is 121302373. The next prime is 121302427. The reversal of 121302423 is 324203121.

It is not a de Polignac number, because 121302423 - 2⁶ = 121302359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121302396 and 121302405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121302427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17986 + ... + 23792.

It is an arithmetic number, because the mean of its divisors is an integer number (8003424).

Almost surely, 2^121302423 is an apocalyptic number.

121302423 is a deficient number, since it is larger than the sum of its proper divisors (70779753).

121302423 is a wasteful number, since it uses less digits than its factorization.

121302423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035 (or 6032 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 121302423 is about 11013.7379213417. The cubic root of 121302423 is about 495.0204705339.

Adding to 121302423 its reverse (324203121), we get a palindrome (445505544).

The spelling of 121302423 in words is "one hundred twenty-one million, three hundred two thousand, four hundred twenty-three".