109203531890 has 64 divisors (see below), whose sum is σ = 220554576000. Its totient is φ = 38686565376.

The previous prime is 109203531883. The next prime is 109203531919. The reversal of 109203531890 is 98135302901.

It is a super-2 number, since 2×109203531890² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367817 + ... + 594723.

It is an arithmetic number, because the mean of its divisors is an integer number (3446165250).

Almost surely, 2^109203531890 is an apocalyptic number.

109203531890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109203531890 is an abundant number, since it is smaller than the sum of its proper divisors (111351044110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109203531890 is a wasteful number, since it uses less digits than its factorization.

109203531890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227099.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 109203531890 in words is "one hundred nine billion, two hundred three million, five hundred thirty-one thousand, eight hundred ninety".