122753028643 has 4 divisors (see below), whose sum is σ = 140289175600. Its totient is φ = 105216881688.

The previous prime is 122753028611. The next prime is 122753028659. The reversal of 122753028643 is 346820357221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346820357221 = 13 ⋅26678489017.

It is a cyclic number.

It is not a de Polignac number, because 122753028643 - 2⁵ = 122753028611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122753028643.

It is not an unprimeable number, because it can be changed into a prime (122753028683) 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, 8768073468 + ... + 8768073481.

It is an arithmetic number, because the mean of its divisors is an integer number (35072293900).

Almost surely, 2^122753028643 is an apocalyptic number.

122753028643 is a deficient number, since it is larger than the sum of its proper divisors (17536146957).

122753028643 is an equidigital number, since it uses as much as digits as its factorization.

122753028643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17536146956.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 122753028643 in words is "one hundred twenty-two billion, seven hundred fifty-three million, twenty-eight thousand, six hundred forty-three".