1103001020 has 48 divisors (see below), whose sum is σ = 2574579168. Its totient is φ = 393519360.

The previous prime is 1103001017. The next prime is 1103001037. The reversal of 1103001020 is 201003011.

It is a super-2 number, since 2×1103001020² = 2433222500242080800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1103000989 and 1103001007.

It is a congruent number.

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, 35639 + ... + 58958.

It is an arithmetic number, because the mean of its divisors is an integer number (53637066).

Almost surely, 2^1103001020 is an apocalyptic number.

1103001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103001020 is an abundant number, since it is smaller than the sum of its proper divisors (1471578148).

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

1103001020 is a wasteful number, since it uses less digits than its factorization.

1103001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94670 (or 94668 counting only the distinct ones).

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

The square root of 1103001020 is about 33211.4591669803. The cubic root of 1103001020 is about 1033.2180185807.

Adding to 1103001020 its reverse (201003011), we get a palindrome (1304004031).

The spelling of 1103001020 in words is "one billion, one hundred three million, one thousand, twenty".