13123777305074 has 4 divisors (see below), whose sum is σ = 19685665957614. Its totient is φ = 6561888652536.

The previous prime is 13123777305013. The next prime is 13123777305127. The reversal of 13123777305074 is 47050377732131.

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

It can be written as a sum of positive squares in only one way, i.e., 12595706215849 + 528071089225 = 3549043^2 + 726685^2 .

It is a super-2 number, since 2×13123777305074² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280944326267 + ... + 3280944326270.

Almost surely, 2^{13123777305074} is an apocalyptic number.

13123777305074 is a deficient number, since it is larger than the sum of its proper divisors (6561888652540).

13123777305074 is an equidigital number, since it uses as much as digits as its factorization.

13123777305074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561888652539.

The product of its (nonzero) digits is 2593080, while the sum is 50.

The spelling of 13123777305074 in words is "thirteen trillion, one hundred twenty-three billion, seven hundred seventy-seven million, three hundred five thousand, seventy-four".