2102430573 has 10 divisors (see below), whose sum is σ = 3140668014. Its totient is φ = 1401620328.

The previous prime is 2102430559. The next prime is 2102430611. The reversal of 2102430573 is 3750342012.

It can be written as a sum of positive squares in only one way, i.e., 2014483689 + 87946884 = 44883^2 + 9378^2 .

It is not a de Polignac number, because 2102430573 - 2⁴ = 2102430557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102430973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12977886 + ... + 12978047.

Almost surely, 2^2102430573 is an apocalyptic number.

It is an amenable number.

2102430573 is a deficient number, since it is larger than the sum of its proper divisors (1038237441).

2102430573 is an equidigital number, since it uses as much as digits as its factorization.

2102430573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25955945 (or 25955936 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 2102430573 is about 45852.2690060154. The cubic root of 2102430573 is about 1281.0730286509.

Adding to 2102430573 its reverse (3750342012), we get a palindrome (5852772585).

The spelling of 2102430573 in words is "two billion, one hundred two million, four hundred thirty thousand, five hundred seventy-three".