1210100103 has 24 divisors (see below), whose sum is σ = 1852117488. Its totient is φ = 758714112.

The previous prime is 1210100093. The next prime is 1210100119. The reversal of 1210100103 is 3010010121.

It is not a de Polignac number, because 1210100103 - 2⁵ = 1210100071 is a prime.

It is a super-2 number, since 2×1210100103² = 2928684518561221218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210100183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316801 + ... + 320597.

It is an arithmetic number, because the mean of its divisors is an integer number (77171562).

Almost surely, 2^1210100103 is an apocalyptic number.

1210100103 is a deficient number, since it is larger than the sum of its proper divisors (642017385).

1210100103 is a wasteful number, since it uses less digits than its factorization.

1210100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5903 (or 5900 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1210100103 is about 34786.4931115512. The cubic root of 1210100103 is about 1065.6316216259.

Adding to 1210100103 its reverse (3010010121), we get a palindrome (4220110224).

The spelling of 1210100103 in words is "one billion, two hundred ten million, one hundred thousand, one hundred three".