2102421030 has 64 divisors (see below), whose sum is σ = 5407561728. Its totient is φ = 521769600.

The previous prime is 2102421029. The next prime is 2102421047. The reversal of 2102421030 is 301242012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15646 + ... + 66705.

It is an arithmetic number, because the mean of its divisors is an integer number (84493152).

Almost surely, 2^2102421030 is an apocalyptic number.

2102421030 is an abundant number, since it is smaller than the sum of its proper divisors (3305140698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102421030 is a wasteful number, since it uses less digits than its factorization.

2102421030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82421.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2102421030 is about 45852.1649434353. The cubic root of 2102421030 is about 1281.0710903708.

Adding to 2102421030 its reverse (301242012), we get a palindrome (2403663042).

The spelling of 2102421030 in words is "two billion, one hundred two million, four hundred twenty-one thousand, thirty".