121422423423 has 64 divisors (see below), whose sum is σ = 194200676352. Its totient is φ = 65979809280.

The previous prime is 121422423407. The next prime is 121422423431. The reversal of 121422423423 is 324324224121.

It is not a de Polignac number, because 121422423423 - 2⁴ = 121422423407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121422423523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 88435165 + ... + 88436537.

It is an arithmetic number, because the mean of its divisors is an integer number (3034385568).

Almost surely, 2^121422423423 is an apocalyptic number.

121422423423 is a deficient number, since it is larger than the sum of its proper divisors (72778252929).

121422423423 is a wasteful number, since it uses less digits than its factorization.

121422423423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344.

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

Adding to 121422423423 its reverse (324324224121), we get a palindrome (445746647544).

The spelling of 121422423423 in words is "one hundred twenty-one billion, four hundred twenty-two million, four hundred twenty-three thousand, four hundred twenty-three".