124780240051 has 4 divisors (see below), whose sum is σ = 124783385992. Its totient is φ = 124777094112.

The previous prime is 124780240031. The next prime is 124780240073. The reversal of 124780240051 is 150042087421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150042087421 = 13469 ⋅11139809.

It is a cyclic number.

It is not a de Polignac number, because 124780240051 - 2¹⁵ = 124780207283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124780239989 and 124780240016.

It is not an unprimeable number, because it can be changed into a prime (124780240031) 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, 1512705 + ... + 1593058.

It is an arithmetic number, because the mean of its divisors is an integer number (31195846498).

Almost surely, 2^124780240051 is an apocalyptic number.

124780240051 is a deficient number, since it is larger than the sum of its proper divisors (3145941).

124780240051 is an equidigital number, since it uses as much as digits as its factorization.

124780240051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145940.

The product of its (nonzero) digits is 17920, while the sum is 34.

The spelling of 124780240051 in words is "one hundred twenty-four billion, seven hundred eighty million, two hundred forty thousand, fifty-one".