122543153155 has 4 divisors (see below), whose sum is σ = 147051783792. Its totient is φ = 98034522520.

The previous prime is 122543153149. The next prime is 122543153189. The reversal of 122543153155 is 551351345221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 122543153155 - 2⁹ = 122543152643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12254315311 + ... + 12254315320.

It is an arithmetic number, because the mean of its divisors is an integer number (36762945948).

Almost surely, 2^122543153155 is an apocalyptic number.

122543153155 is a deficient number, since it is larger than the sum of its proper divisors (24508630637).

122543153155 is an equidigital number, since it uses as much as digits as its factorization.

122543153155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24508630636.

The product of its digits is 90000, while the sum is 37.

Adding to 122543153155 its reverse (551351345221), we get a palindrome (673894498376).

The spelling of 122543153155 in words is "one hundred twenty-two billion, five hundred forty-three million, one hundred fifty-three thousand, one hundred fifty-five".