1009910100920 has 32 divisors (see below), whose sum is σ = 2596911688800. Its totient is φ = 346254891648.

The previous prime is 1009910100889. The next prime is 1009910100923. The reversal of 1009910100920 is 290010199001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009910100923) 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, 1803410615 + ... + 1803411174.

It is an arithmetic number, because the mean of its divisors is an integer number (81153490275).

Almost surely, 2^{1009910100920} is an apocalyptic number.

1009910100920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1009910100920 is an abundant number, since it is smaller than the sum of its proper divisors (1587001587880).

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

1009910100920 is a wasteful number, since it uses less digits than its factorization.

1009910100920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606821807 (or 3606821803 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 32.

Adding to 1009910100920 its reverse (290010199001), we get a palindrome (1299920299921).

The spelling of 1009910100920 in words is "one trillion, nine billion, nine hundred ten million, one hundred thousand, nine hundred twenty".