13121421653342 has 8 divisors (see below), whose sum is σ = 19782041782536. Its totient is φ = 6527407725832.

The previous prime is 13121421653303. The next prime is 13121421653381. The reversal of 13121421653342 is 24335612412131.

It is an interprime number because it is at equal distance from previous prime (13121421653303) and next prime (13121421653381).

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

It is a junction number, because it is equal to n+sod(n) for n = 13121421653296 and 13121421653305.

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, 16651549928 + ... + 16651550715.

It is an arithmetic number, because the mean of its divisors is an integer number (2472755222817).

Almost surely, 2^{13121421653342} is an apocalyptic number.

13121421653342 is a deficient number, since it is larger than the sum of its proper divisors (6660620129194).

13121421653342 is a wasteful number, since it uses less digits than its factorization.

13121421653342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33303100842.

The product of its digits is 103680, while the sum is 38.

The spelling of 13121421653342 in words is "thirteen trillion, one hundred twenty-one billion, four hundred twenty-one million, six hundred fifty-three thousand, three hundred forty-two".