2120603451 has 16 divisors (see below), whose sum is σ = 2877925920. Its totient is φ = 1388574720.

The previous prime is 2120603447. The next prime is 2120603461. The reversal of 2120603451 is 1543060212.

It is not a de Polignac number, because 2120603451 - 2² = 2120603447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120603411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126235 + ... + 142043.

It is an arithmetic number, because the mean of its divisors is an integer number (179870370).

Almost surely, 2^2120603451 is an apocalyptic number.

2120603451 is a deficient number, since it is larger than the sum of its proper divisors (757322469).

2120603451 is a wasteful number, since it uses less digits than its factorization.

2120603451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16606.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2120603451 is about 46050.0103257317. The cubic root of 2120603451 is about 1284.7535348691.

Adding to 2120603451 its reverse (1543060212), we get a palindrome (3663663663).

The spelling of 2120603451 in words is "two billion, one hundred twenty million, six hundred three thousand, four hundred fifty-one".