122040276643 has 4 divisors (see below), whose sum is σ = 122931081720. Its totient is φ = 121149471568.

The previous prime is 122040276623. The next prime is 122040276649. The reversal of 122040276643 is 346672040221.

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

It is a cyclic number.

It is not a de Polignac number, because 122040276643 - 2²¹ = 122038179491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122040276649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445402333 + ... + 445402606.

It is an arithmetic number, because the mean of its divisors is an integer number (30732770430).

Almost surely, 2^122040276643 is an apocalyptic number.

122040276643 is a deficient number, since it is larger than the sum of its proper divisors (890805077).

122040276643 is an equidigital number, since it uses as much as digits as its factorization.

122040276643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890805076.

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 122040276643 in words is "one hundred twenty-two billion, forty million, two hundred seventy-six thousand, six hundred forty-three".