10121740505 has 4 divisors (see below), whose sum is σ = 12146088612. Its totient is φ = 8097392400.

The previous prime is 10121740493. The next prime is 10121740511. The reversal of 10121740505 is 50504712101.

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 1291755481 + 8829985024 = 35941^2 + 93968^2 .

It is not a de Polignac number, because 10121740505 - 2⁶ = 10121740441 is a prime.

It is a Duffinian 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, 1012174046 + ... + 1012174055.

It is an arithmetic number, because the mean of its divisors is an integer number (3036522153).

Almost surely, 2^10121740505 is an apocalyptic number.

It is an amenable number.

10121740505 is a deficient number, since it is larger than the sum of its proper divisors (2024348107).

10121740505 is an equidigital number, since it uses as much as digits as its factorization.

10121740505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024348106.

The product of its (nonzero) digits is 1400, while the sum is 26.

The spelling of 10121740505 in words is "ten billion, one hundred twenty-one million, seven hundred forty thousand, five hundred five".