21401412517302 has 16 divisors (see below), whose sum is σ = 43528296646080. Its totient is φ = 7012892237192.

The previous prime is 21401412517279. The next prime is 21401412517313. The reversal of 21401412517302 is 20371521410412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30227983428 + ... + 30227984135.

It is an arithmetic number, because the mean of its divisors is an integer number (2720518540380).

Almost surely, 2^{21401412517302} is an apocalyptic number.

21401412517302 is an abundant number, since it is smaller than the sum of its proper divisors (22126884128778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21401412517302 is a wasteful number, since it uses less digits than its factorization.

21401412517302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60455967627.

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 21401412517302 its reverse (20371521410412), we get a palindrome (41772933927714).

The spelling of 21401412517302 in words is "twenty-one trillion, four hundred one billion, four hundred twelve million, five hundred seventeen thousand, three hundred two".