21314242545104 has 40 divisors (see below), whose sum is σ = 43481465148000. Its totient is φ = 10093519368576.

The previous prime is 21314242545031. The next prime is 21314242545119. The reversal of 21314242545104 is 40154524241312.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8239199 + ... + 10512510.

It is an arithmetic number, because the mean of its divisors is an integer number (1087036628700).

Almost surely, 2^{21314242545104} is an apocalyptic number.

It is an amenable number.

21314242545104 is an abundant number, since it is smaller than the sum of its proper divisors (22167222602896).

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

21314242545104 is a wasteful number, since it uses less digits than its factorization.

21314242545104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18755475 (or 18755469 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 21314242545104 its reverse (40154524241312), we get a palindrome (61468766786416).

The spelling of 21314242545104 in words is "twenty-one trillion, three hundred fourteen billion, two hundred forty-two million, five hundred forty-five thousand, one hundred four".