103021100 has 72 divisors (see below), whose sum is σ = 275169888. Its totient is φ = 32601600.

The previous prime is 103021099. The next prime is 103021157. The reversal of 103021100 is 1120301.

It is a super-2 number, since 2×103021100² = 21226694090420000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3440 + ... + 14760.

It is an arithmetic number, because the mean of its divisors is an integer number (3821804).

Almost surely, 2^103021100 is an apocalyptic number.

103021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103021100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137584944).

103021100 is an abundant number, since it is smaller than the sum of its proper divisors (172148788).

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

103021100 is a wasteful number, since it uses less digits than its factorization.

103021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11355 (or 11348 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 103021100 is about 10149.9310342485. The cubic root of 103021100 is about 468.7868214038.

Adding to 103021100 its reverse (1120301), we get a palindrome (104141401).

The spelling of 103021100 in words is "one hundred three million, twenty-one thousand, one hundred".