1081730365421 has 8 divisors (see below), whose sum is σ = 1088460996480. Its totient is φ = 1075007372992.

The previous prime is 1081730365411. The next prime is 1081730365459. The reversal of 1081730365421 is 1245630371801.

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 1081730365421 - 2⁶ = 1081730365357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081730365411) 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, 1625420 + ... + 2192133.

It is an arithmetic number, because the mean of its divisors is an integer number (136057624560).

Almost surely, 2^{1081730365421} is an apocalyptic number.

It is an amenable number.

1081730365421 is a deficient number, since it is larger than the sum of its proper divisors (6730631059).

1081730365421 is a wasteful number, since it uses less digits than its factorization.

1081730365421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819315.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 1081730365421 in words is "one trillion, eighty-one billion, seven hundred thirty million, three hundred sixty-five thousand, four hundred twenty-one".