1341162720521 has 8 divisors (see below), whose sum is σ = 1450083386304. Its totient is φ = 1233064098000.

The previous prime is 1341162720511. The next prime is 1341162720581. The reversal of 1341162720521 is 1250272611431.

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

It is a cyclic number.

It is not a de Polignac number, because 1341162720521 - 2³⁸ = 1066284813577 is a prime.

It is a super-2 number, since 2×1341162720521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1341162720511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205507421 + ... + 205513946.

It is an arithmetic number, because the mean of its divisors is an integer number (181260423288).

Almost surely, 2^{1341162720521} is an apocalyptic number.

It is an amenable number.

1341162720521 is a deficient number, since it is larger than the sum of its proper divisors (108920665783).

1341162720521 is a wasteful number, since it uses less digits than its factorization.

1341162720521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411021631.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 1341162720521 in words is "one trillion, three hundred forty-one billion, one hundred sixty-two million, seven hundred twenty thousand, five hundred twenty-one".