103421455045521 has 16 divisors (see below), whose sum is σ = 138762033807360. Its totient is φ = 68514383180880.

The previous prime is 103421455045429. The next prime is 103421455045529. The reversal of 103421455045521 is 125540554124301.

It is not a de Polignac number, because 103421455045521 - 2⁷ = 103421455045393 is a prime.

It is a super-2 number, since 2×103421455045521² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103421455045529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12566865 + ... + 19098926.

It is an arithmetic number, because the mean of its divisors is an integer number (8672627112960).

Almost surely, 2^{103421455045521} is an apocalyptic number.

It is an amenable number.

103421455045521 is a deficient number, since it is larger than the sum of its proper divisors (35340578761839).

103421455045521 is a wasteful number, since it uses less digits than its factorization.

103421455045521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31672636.

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 103421455045521 in words is "one hundred three trillion, four hundred twenty-one billion, four hundred fifty-five million, forty-five thousand, five hundred twenty-one".