103111003020 has 48 divisors (see below), whose sum is σ = 291569348448. Its totient is φ = 27224025600.

The previous prime is 103111002949. The next prime is 103111003031. The reversal of 103111003020 is 20300111301.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 103111002987 and 103111003005.

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, 8501449 + ... + 8513568.

It is an arithmetic number, because the mean of its divisors is an integer number (6074361426).

Almost surely, 2^103111003020 is an apocalyptic number.

103111003020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103111003020 is an abundant number, since it is smaller than the sum of its proper divisors (188458345428).

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

103111003020 is a wasteful number, since it uses less digits than its factorization.

103111003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17015130 (or 17015128 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 103111003020 its reverse (20300111301), we get a palindrome (123411114321).

The spelling of 103111003020 in words is "one hundred three billion, one hundred eleven million, three thousand, twenty".