21411514015340 has 24 divisors (see below), whose sum is σ = 45384405412752. Its totient is φ = 8484562562240.

The previous prime is 21411514015271. The next prime is 21411514015343. The reversal of 21411514015340 is 4351041511412.

It is a junction number, because it is equal to n+sod(n) for n = 21411514015297 and 21411514015306.

It is not an unprimeable number, because it can be changed into a prime (21411514015343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5002688051 + ... + 5002692330.

It is an arithmetic number, because the mean of its divisors is an integer number (1891016892198).

Almost surely, 2^{21411514015340} is an apocalyptic number.

21411514015340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21411514015340 is an abundant number, since it is smaller than the sum of its proper divisors (23972891397412).

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

21411514015340 is a wasteful number, since it uses less digits than its factorization.

21411514015340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005380497 (or 10005380495 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 21411514015340 its reverse (4351041511412), we get a palindrome (25762555526752).

The spelling of 21411514015340 in words is "twenty-one trillion, four hundred eleven billion, five hundred fourteen million, fifteen thousand, three hundred forty".