100103020 has 24 divisors (see below), whose sum is σ = 221281200. Its totient is φ = 37933632.

The previous prime is 100102993. The next prime is 100103053. The reversal of 100103020 is 20301001.

100103020 = T₈₄ + T₈₅ + ... + T₈₄₃.

It is a super-2 number, since 2×100103020² = 20041229226240800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100102994 and 100103012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131335 + ... + 132094.

It is an arithmetic number, because the mean of its divisors is an integer number (9220050).

Almost surely, 2^100103020 is an apocalyptic number.

100103020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100103020 is an abundant number, since it is smaller than the sum of its proper divisors (121178180).

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

100103020 is a wasteful number, since it uses less digits than its factorization.

100103020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263457 (or 263455 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 100103020 is about 10005.1496740429. The cubic root of 100103020 is about 464.3182208179.

Adding to 100103020 its reverse (20301001), we get a palindrome (120404021).

The spelling of 100103020 in words is "one hundred million, one hundred three thousand, twenty".