121423224423 has 16 divisors (see below), whose sum is σ = 162467634560. Its totient is φ = 80663954976.

The previous prime is 121423224413. The next prime is 121423224451. The reversal of 121423224423 is 324422324121.

It is not a de Polignac number, because 121423224423 - 2²⁸ = 121154788967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121423224413) 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, 3997668 + ... + 4027926.

It is an arithmetic number, because the mean of its divisors is an integer number (10154227160).

Almost surely, 2^121423224423 is an apocalyptic number.

121423224423 is a deficient number, since it is larger than the sum of its proper divisors (41044410137).

121423224423 is a wasteful number, since it uses less digits than its factorization.

121423224423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34926.

The product of its digits is 18432, while the sum is 30.

Adding to 121423224423 its reverse (324422324121), we get a palindrome (445845548544).

The spelling of 121423224423 in words is "one hundred twenty-one billion, four hundred twenty-three million, two hundred twenty-four thousand, four hundred twenty-three".