1203100103 has 4 divisors (see below), whose sum is σ = 1235616360. Its totient is φ = 1170583848.

The previous prime is 1203100099. The next prime is 1203100109. The reversal of 1203100103 is 3010013021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3010013021 = 277 ⋅10866473.

It is a cyclic number.

It is not a de Polignac number, because 1203100103 - 2² = 1203100099 is a prime.

It is a super-2 number, since 2×1203100103² = 2894899715677221218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203100109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16258073 + ... + 16258146.

It is an arithmetic number, because the mean of its divisors is an integer number (308904090).

Almost surely, 2^1203100103 is an apocalyptic number.

1203100103 is a deficient number, since it is larger than the sum of its proper divisors (32516257).

1203100103 is an equidigital number, since it uses as much as digits as its factorization.

1203100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32516256.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1203100103 is about 34685.7334216822. The cubic root of 1203100103 is about 1063.5728797899.

Adding to 1203100103 its reverse (3010013021), we get a palindrome (4213113124).

The spelling of 1203100103 in words is "one billion, two hundred three million, one hundred thousand, one hundred three".