2103212369 has 4 divisors (see below), whose sum is σ = 2105532144. Its totient is φ = 2100892596.

The previous prime is 2103212359. The next prime is 2103212389. The reversal of 2103212369 is 9632123012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2103212369 - 2⁸ = 2103212113 is a prime.

It is a super-2 number, since 2×2103212369² = 8847004538229184322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103212359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158527 + ... + 1160340.

It is an arithmetic number, because the mean of its divisors is an integer number (526383036).

Almost surely, 2^2103212369 is an apocalyptic number.

It is an amenable number.

2103212369 is a deficient number, since it is larger than the sum of its proper divisors (2319775).

2103212369 is an equidigital number, since it uses as much as digits as its factorization.

2103212369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319774.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 2103212369 is about 45860.7933751696. The cubic root of 2103212369 is about 1281.2317994353.

The spelling of 2103212369 in words is "two billion, one hundred three million, two hundred twelve thousand, three hundred sixty-nine".