121230030423 has 16 divisors (see below), whose sum is σ = 170216577920. Its totient is φ = 76535210016.

The previous prime is 121230030353. The next prime is 121230030511. The reversal of 121230030423 is 324030032121.

It is not a de Polignac number, because 121230030423 - 2¹⁴ = 121230014039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121230030423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230030223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290440 + ... + 571677.

It is an arithmetic number, because the mean of its divisors is an integer number (10638536120).

Almost surely, 2^121230030423 is an apocalyptic number.

121230030423 is a deficient number, since it is larger than the sum of its proper divisors (48986547497).

121230030423 is a wasteful number, since it uses less digits than its factorization.

121230030423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864606.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 121230030423 its reverse (324030032121), we get a palindrome (445260062544).

The spelling of 121230030423 in words is "one hundred twenty-one billion, two hundred thirty million, thirty thousand, four hundred twenty-three".