1102103020 has 24 divisors (see below), whose sum is σ = 2340424800. Its totient is φ = 435887232.

The previous prime is 1102103017. The next prime is 1102103021. The reversal of 1102103020 is 203012011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1102102988 and 1102103006.

It is not an unprimeable number, because it can be changed into a prime (1102103021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307800 + ... + 311359.

It is an arithmetic number, because the mean of its divisors is an integer number (97517700).

Almost surely, 2^1102103020 is an apocalyptic number.

1102103020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102103020 is an abundant number, since it is smaller than the sum of its proper divisors (1238321780).

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

1102103020 is a wasteful number, since it uses less digits than its factorization.

1102103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619257 (or 619255 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1102103020 is about 33197.9369840959. The cubic root of 1102103020 is about 1032.9375468878.

Adding to 1102103020 its reverse (203012011), we get a palindrome (1305115031).

The spelling of 1102103020 in words is "one billion, one hundred two million, one hundred three thousand, twenty".