2100434451 has 8 divisors (see below), whose sum is σ = 2922343680. Its totient is φ = 1339407432.

The previous prime is 2100434447. The next prime is 2100434461. The reversal of 2100434451 is 1544340012.

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

It is not a de Polignac number, because 2100434451 - 2² = 2100434447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100434431) 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, 15220471 + ... + 15220608.

It is an arithmetic number, because the mean of its divisors is an integer number (365292960).

Almost surely, 2^2100434451 is an apocalyptic number.

2100434451 is a deficient number, since it is larger than the sum of its proper divisors (821909229).

2100434451 is a wasteful number, since it uses less digits than its factorization.

2100434451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30441105.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2100434451 is about 45830.4969534479. The cubic root of 2100434451 is about 1280.6674682474.

Adding to 2100434451 its reverse (1544340012), we get a palindrome (3644774463).

It can be divided in two parts, 21004 and 34451, that added together give a palindrome (55455).

The spelling of 2100434451 in words is "two billion, one hundred million, four hundred thirty-four thousand, four hundred fifty-one".