122543035501 has 4 divisors (see below), whose sum is σ = 129751449372. Its totient is φ = 115334621632.

The previous prime is 122543035499. The next prime is 122543035579. The reversal of 122543035501 is 105530345221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41138386276 + 81404649225 = 202826^2 + 285315^2 .

It is a cyclic number.

It is not a de Polignac number, because 122543035501 - 2¹ = 122543035499 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 (122543035001) 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, 3604206910 + ... + 3604206943.

It is an arithmetic number, because the mean of its divisors is an integer number (32437862343).

Almost surely, 2^122543035501 is an apocalyptic number.

It is an amenable number.

122543035501 is a deficient number, since it is larger than the sum of its proper divisors (7208413871).

122543035501 is an equidigital number, since it uses as much as digits as its factorization.

122543035501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7208413870.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 122543035501 in words is "one hundred twenty-two billion, five hundred forty-three million, thirty-five thousand, five hundred one".