1103021010 has 128 divisors (see below), whose sum is σ = 3620252160. Its totient is φ = 232720128.

The previous prime is 1103020999. The next prime is 1103021027. The reversal of 1103021010 is 101203011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1103020983 and 1103021001.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2124 + ... + 47016.

It is an arithmetic number, because the mean of its divisors is an integer number (28283220).

Almost surely, 2^1103021010 is an apocalyptic number.

1103021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103021010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1810126080).

1103021010 is an abundant number, since it is smaller than the sum of its proper divisors (2517231150).

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

1103021010 is a wasteful number, since it uses less digits than its factorization.

1103021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44929 (or 44923 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1103021010 is about 33211.7601159589. The cubic root of 1103021010 is about 1033.2242603106.

Adding to 1103021010 its reverse (101203011), we get a palindrome (1204224021).

The spelling of 1103021010 in words is "one billion, one hundred three million, twenty-one thousand, ten".