2120154103 has 2 divisors, whose sum is σ = 2120154104. Its totient is φ = 2120154102.

The previous prime is 2120154041. The next prime is 2120154149. The reversal of 2120154103 is 3014510212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120154103 - 2²¹ = 2118056951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120154503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060077051 + 1060077052.

It is an arithmetic number, because the mean of its divisors is an integer number (1060077052).

Almost surely, 2^2120154103 is an apocalyptic number.

2120154103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120154103 is an equidigital number, since it uses as much as digits as its factorization.

2120154103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2120154103 is about 46045.1311541188. The cubic root of 2120154103 is about 1284.6627836238.

Adding to 2120154103 its reverse (3014510212), we get a palindrome (5134664315).

The spelling of 2120154103 in words is "two billion, one hundred twenty million, one hundred fifty-four thousand, one hundred three".