21713129953010 has 8 divisors (see below), whose sum is σ = 39083633915436. Its totient is φ = 8685251981200.

The previous prime is 21713129952991. The next prime is 21713129953019. The reversal of 21713129953010 is 1035992131712.

It can be written as a sum of positive squares in 2 ways, for example, as 21568342853929 + 144787099081 = 4644173^2 + 380509^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21713129953019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085656497641 + ... + 1085656497660.

Almost surely, 2^{21713129953010} is an apocalyptic number.

21713129953010 is a deficient number, since it is larger than the sum of its proper divisors (17370503962426).

21713129953010 is a wasteful number, since it uses less digits than its factorization.

21713129953010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171312995308.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 21713129953010 in words is "twenty-one trillion, seven hundred thirteen billion, one hundred twenty-nine million, nine hundred fifty-three thousand, ten".