21513202314541 has 16 divisors (see below), whose sum is σ = 26065566346240. Its totient is φ = 17362753885440.

The previous prime is 21513202314491. The next prime is 21513202314563. The reversal of 21513202314541 is 14541320231512.

It is a cyclic number.

It is not a de Polignac number, because 21513202314541 - 2¹⁹ = 21513201790253 is a prime.

It is a super-3 number, since 3×21513202314541³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21513202314497 and 21513202314506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21513202314941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1339710636 + ... + 1339726693.

It is an arithmetic number, because the mean of its divisors is an integer number (1629097896640).

Almost surely, 2^{21513202314541} is an apocalyptic number.

It is an amenable number.

21513202314541 is a deficient number, since it is larger than the sum of its proper divisors (4552364031699).

21513202314541 is a wasteful number, since it uses less digits than its factorization.

21513202314541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679437404.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 21513202314541 in words is "twenty-one trillion, five hundred thirteen billion, two hundred two million, three hundred fourteen thousand, five hundred forty-one".