121422134132123 has 16 divisors (see below), whose sum is σ = 137029473554400. Its totient is φ = 106576364186880.

The previous prime is 121422134132081. The next prime is 121422134132147. The reversal of 121422134132123 is 321231431224121.

It is a cyclic number.

It is not a de Polignac number, because 121422134132123 - 2³⁴ = 121404954262939 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 121422134132123.

It is not an unprimeable number, because it can be changed into a prime (121422134032123) 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, 31215743 + ... + 34889351.

It is an arithmetic number, because the mean of its divisors is an integer number (8564342097150).

Almost surely, 2^{121422134132123} is an apocalyptic number.

121422134132123 is a deficient number, since it is larger than the sum of its proper divisors (15607339422277).

121422134132123 is a wasteful number, since it uses less digits than its factorization.

121422134132123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777262.

The product of its digits is 13824, while the sum is 32.

Adding to 121422134132123 its reverse (321231431224121), we get a palindrome (442653565356244).

The spelling of 121422134132123 in words is "one hundred twenty-one trillion, four hundred twenty-two billion, one hundred thirty-four million, one hundred thirty-two thousand, one hundred twenty-three".