124051250405 has 4 divisors (see below), whose sum is σ = 148861500492. Its totient is φ = 99241000320.

The previous prime is 124051250383. The next prime is 124051250413. The reversal of 124051250405 is 504052150421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504052150421 = 199 ⋅2532925379.

It can be written as a sum of positive squares in 2 ways, for example, as 58130174404 + 65921076001 = 241102^2 + 256751^2 .

It is not a de Polignac number, because 124051250405 - 2¹⁶ = 124051184869 is a prime.

It is a Duffinian number.

It is a congruent 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, 12405125036 + ... + 12405125045.

It is an arithmetic number, because the mean of its divisors is an integer number (37215375123).

Almost surely, 2^124051250405 is an apocalyptic number.

It is an amenable number.

124051250405 is a deficient number, since it is larger than the sum of its proper divisors (24810250087).

124051250405 is an equidigital number, since it uses as much as digits as its factorization.

124051250405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24810250086.

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 124051250405 in words is "one hundred twenty-four billion, fifty-one million, two hundred fifty thousand, four hundred five".