103324721521 has 8 divisors (see below), whose sum is σ = 119188998720. Its totient is φ = 87736345008.

The previous prime is 103324721497. The next prime is 103324721551. The reversal of 103324721521 is 125127423301.

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 103324721521 - 2¹⁷ = 103324590449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103324721551) 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, 68974366 + ... + 68975863.

It is an arithmetic number, because the mean of its divisors is an integer number (14898624840).

Almost surely, 2^103324721521 is an apocalyptic number.

It is an amenable number.

103324721521 is a deficient number, since it is larger than the sum of its proper divisors (15864277199).

103324721521 is a wasteful number, since it uses less digits than its factorization.

103324721521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137950343.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 103324721521 in words is "one hundred three billion, three hundred twenty-four million, seven hundred twenty-one thousand, five hundred twenty-one".