2151242103 has 8 divisors (see below), whose sum is σ = 2886593008. Its totient is φ = 1425026304.

The previous prime is 2151242099. The next prime is 2151242131. The reversal of 2151242103 is 3012421512.

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

It is not a de Polignac number, because 2151242103 - 2² = 2151242099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2151242103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151242153) 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, 2283226 + ... + 2284167.

It is an arithmetic number, because the mean of its divisors is an integer number (360824126).

Almost surely, 2^2151242103 is an apocalyptic number.

2151242103 is a deficient number, since it is larger than the sum of its proper divisors (735350905).

2151242103 is a wasteful number, since it uses less digits than its factorization.

2151242103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567553.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2151242103 is about 46381.4844846518. The cubic root of 2151242103 is about 1290.9113810791.

Adding to 2151242103 its reverse (3012421512), we get a palindrome (5163663615).

The spelling of 2151242103 in words is "two billion, one hundred fifty-one million, two hundred forty-two thousand, one hundred three".