13123255203242 has 8 divisors (see below), whose sum is σ = 20842817087556. Its totient is φ = 6175649507392.

The previous prime is 13123255203221. The next prime is 13123255203251. The reversal of 13123255203242 is 24230255232131.

It can be written as a sum of positive squares in 2 ways, for example, as 12726621018721 + 396634184521 = 3567439^2 + 629789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 192989047073 + ... + 192989047140.

Almost surely, 2^{13123255203242} is an apocalyptic number.

13123255203242 is a deficient number, since it is larger than the sum of its proper divisors (7719561884314).

13123255203242 is a wasteful number, since it uses less digits than its factorization.

13123255203242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385978094232.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 13123255203242 in words is "thirteen trillion, one hundred twenty-three billion, two hundred fifty-five million, two hundred three thousand, two hundred forty-two".