21033140144230 has 32 divisors (see below), whose sum is σ = 38665777078656. Its totient is φ = 8234122767744.

The previous prime is 21033140144207. The next prime is 21033140144287. The reversal of 21033140144230 is 3244104133012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33451912 + ... + 34074868.

It is an arithmetic number, because the mean of its divisors is an integer number (1208305533708).

Almost surely, 2^{21033140144230} is an apocalyptic number.

21033140144230 is a deficient number, since it is larger than the sum of its proper divisors (17632636934426).

21033140144230 is a wasteful number, since it uses less digits than its factorization.

21033140144230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694848.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 21033140144230 its reverse (3244104133012), we get a palindrome (24277244277242).

The spelling of 21033140144230 in words is "twenty-one trillion, thirty-three billion, one hundred forty million, one hundred forty-four thousand, two hundred thirty".