103098145921 has 9 divisors (see below), whose sum is σ = 103463226849. Its totient is φ = 102734352084.

The previous prime is 103098145901. The next prime is 103098145987. The reversal of 103098145921 is 129541890301.

The square root of 103098145921 is 321089.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 103098145921 - 2⁷ = 103098145793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103098145901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 175635390 + ... + 175635976.

Almost surely, 2^103098145921 is an apocalyptic number.

103098145921 is the 321089-th square number.

103098145921 is the 160545-th centered octagonal number.

It is an amenable number.

103098145921 is a deficient number, since it is larger than the sum of its proper divisors (365080928).

103098145921 is an frugal number, since it uses more digits than its factorization.

103098145921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 103098145921 in words is "one hundred three billion, ninety-eight million, one hundred forty-five thousand, nine hundred twenty-one".