20101430 has 32 divisors (see below), whose sum is σ = 38914560. Its totient is φ = 7452000.

The previous prime is 20101427. The next prime is 20101483. The reversal of 20101430 is 3410102.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7805 + ... + 10055.

It is an arithmetic number, because the mean of its divisors is an integer number (1216080).

Almost surely, 2^20101430 is an apocalyptic number.

20101430 is a deficient number, since it is larger than the sum of its proper divisors (18813130).

20101430 is a wasteful number, since it uses less digits than its factorization.

20101430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20101430 is about 4483.4618321114. The cubic root of 20101430 is about 271.8998604122.

Adding to 20101430 its reverse (3410102), we get a palindrome (23511532).

The spelling of 20101430 in words is "twenty million, one hundred one thousand, four hundred thirty".