103308887890 has 32 divisors (see below), whose sum is σ = 200706433200. Its totient is φ = 38059843584.

The previous prime is 103308887863. The next prime is 103308887921. The reversal of 103308887890 is 98788803301.

It is a Cunningham number, because it is equal to 321417²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 37191508201 + 66117379689 = 192851^2 + 257133^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 826579 + ... + 943318.

Almost surely, 2^103308887890 is an apocalyptic number.

103308887890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103308887890 is a deficient number, since it is larger than the sum of its proper divisors (97397545310).

103308887890 is a wasteful number, since it uses less digits than its factorization.

103308887890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770366.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 103308887890 in words is "one hundred three billion, three hundred eight million, eight hundred eighty-seven thousand, eight hundred ninety".