2123103243 has 8 divisors (see below), whose sum is σ = 2832750400. Its totient is φ = 1414429128.

The previous prime is 2123103239. The next prime is 2123103247. The reversal of 2123103243 is 3423013212.

It is an interprime number because it is at equal distance from previous prime (2123103239) and next prime (2123103247).

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

It is not a de Polignac number, because 2123103243 - 2² = 2123103239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123103247) 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 7 ways as a sum of consecutive naturals, for example, 238153 + ... + 246906.

It is an arithmetic number, because the mean of its divisors is an integer number (354093800).

Almost surely, 2^2123103243 is an apocalyptic number.

2123103243 is a deficient number, since it is larger than the sum of its proper divisors (709647157).

2123103243 is a wasteful number, since it uses less digits than its factorization.

2123103243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486521.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2123103243 is about 46077.1444753253. The cubic root of 2123103243 is about 1285.2581641008.

Adding to 2123103243 its reverse (3423013212), we get a palindrome (5546116455).

The spelling of 2123103243 in words is "two billion, one hundred twenty-three million, one hundred three thousand, two hundred forty-three".