2123213103 has 48 divisors (see below), whose sum is σ = 3430645920. Its totient is φ = 1254528000.

The previous prime is 2123213101. The next prime is 2123213111. The reversal of 2123213103 is 3013123212.

It is not a de Polignac number, because 2123213103 - 2¹ = 2123213101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123213101) 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 47 ways as a sum of consecutive naturals, for example, 641553 + ... + 644853.

It is an arithmetic number, because the mean of its divisors is an integer number (71471790).

Almost surely, 2^2123213103 is an apocalyptic number.

2123213103 is a deficient number, since it is larger than the sum of its proper divisors (1307432817).

2123213103 is a wasteful number, since it uses less digits than its factorization.

2123213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480 (or 3477 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2123213103 is about 46078.3365910706. The cubic root of 2123213103 is about 1285.2803322843.

Adding to 2123213103 its reverse (3013123212), we get a palindrome (5136336315).

It can be divided in two parts, 21 and 23213103, that added together give a square (23213124 = 4818²).

The spelling of 2123213103 in words is "two billion, one hundred twenty-three million, two hundred thirteen thousand, one hundred three".