21051340141325 has 12 divisors (see below), whose sum is σ = 28111635758388. Its totient is φ = 15545605027200.

The previous prime is 21051340141301. The next prime is 21051340141331. The reversal of 21051340141325 is 52314104315012.

It can be written as a sum of positive squares in 6 ways, for example, as 4854852577129 + 16196487564196 = 2203373^2 + 4024486^2 .

It is not a de Polignac number, because 21051340141325 - 2²⁴ = 21051323364109 is a prime.

It is a super-2 number, since 2×21051340141325² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21051340141291 and 21051340141300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32386676816 + ... + 32386677465.

It is an arithmetic number, because the mean of its divisors is an integer number (2342636313199).

Almost surely, 2^{21051340141325} is an apocalyptic number.

21051340141325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21051340141325 is a deficient number, since it is larger than the sum of its proper divisors (7060295617063).

21051340141325 is a wasteful number, since it uses less digits than its factorization.

21051340141325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64773354304 (or 64773354299 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 21051340141325 its reverse (52314104315012), we get a palindrome (73365444456337).

The spelling of 21051340141325 in words is "twenty-one trillion, fifty-one billion, three hundred forty million, one hundred forty-one thousand, three hundred twenty-five".