21050306073410 has 32 divisors (see below), whose sum is σ = 39039265224432. Its totient is φ = 8168634362880.

The previous prime is 21050306073397. The next prime is 21050306073437. The reversal of 21050306073410 is 1437060305012.

It can be written as a sum of positive squares in 8 ways, for example, as 136028930041 + 20914277143369 = 368821^2 + 4573213^2 .

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, 236316419 + ... + 236405478.

Almost surely, 2^{21050306073410} is an apocalyptic number.

21050306073410 is a deficient number, since it is larger than the sum of its proper divisors (17988959151022).

21050306073410 is a wasteful number, since it uses less digits than its factorization.

21050306073410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472722038.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 21050306073410 its reverse (1437060305012), we get a palindrome (22487366378422).

The spelling of 21050306073410 in words is "twenty-one trillion, fifty billion, three hundred six million, seventy-three thousand, four hundred ten".