2121302103 has 8 divisors (see below), whose sum is σ = 2834540016. Its totient is φ = 1411132800.

The previous prime is 2121302087. The next prime is 2121302119. The reversal of 2121302103 is 3012031212.

It is an interprime number because it is at equal distance from previous prime (2121302087) and next prime (2121302119).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2121302103 - 2⁴ = 2121302087 is a prime.

It is a super-2 number, since 2×2121302103² = 8999845224384445218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121307103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765538 + ... + 768303.

It is an arithmetic number, because the mean of its divisors is an integer number (354317502).

Almost surely, 2^2121302103 is an apocalyptic number.

2121302103 is a deficient number, since it is larger than the sum of its proper divisors (713237913).

2121302103 is a wasteful number, since it uses less digits than its factorization.

2121302103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534305.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2121302103 is about 46057.5954973770. The cubic root of 2121302103 is about 1284.8946106040.

Adding to 2121302103 its reverse (3012031212), we get a palindrome (5133333315).

The spelling of 2121302103 in words is "two billion, one hundred twenty-one million, three hundred two thousand, one hundred three".