122154137323 has 4 divisors (see below), whose sum is σ = 125133506568. Its totient is φ = 119174768080.

The previous prime is 122154137317. The next prime is 122154137351. The reversal of 122154137323 is 323731451221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323731451221 = 128389 ⋅2521489.

It is a cyclic number.

It is not a de Polignac number, because 122154137323 - 2¹⁷ = 122154006251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122154137383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489684561 + ... + 1489684642.

It is an arithmetic number, because the mean of its divisors is an integer number (31283376642).

Almost surely, 2^122154137323 is an apocalyptic number.

122154137323 is a deficient number, since it is larger than the sum of its proper divisors (2979369245).

122154137323 is an equidigital number, since it uses as much as digits as its factorization.

122154137323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979369244.

The product of its digits is 30240, while the sum is 34.

Adding to 122154137323 its reverse (323731451221), we get a palindrome (445885588544).

The spelling of 122154137323 in words is "one hundred twenty-two billion, one hundred fifty-four million, one hundred thirty-seven thousand, three hundred twenty-three".