21020131302110 has 8 divisors (see below), whose sum is σ = 37836236343816. Its totient is φ = 8408052520840.

The previous prime is 21020131302103. The next prime is 21020131302127. The reversal of 21020131302110 is 1120313102012.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051006565096 + ... + 1051006565115.

It is an arithmetic number, because the mean of its divisors is an integer number (4729529542977).

Almost surely, 2^{21020131302110} is an apocalyptic number.

21020131302110 is a deficient number, since it is larger than the sum of its proper divisors (16816105041706).

21020131302110 is a wasteful number, since it uses less digits than its factorization.

21020131302110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102013130218.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21020131302110 its reverse (1120313102012), we get a palindrome (22140444404122).

The spelling of 21020131302110 in words is "twenty-one trillion, twenty billion, one hundred thirty-one million, three hundred two thousand, one hundred ten".