21313013323001 has 16 divisors (see below), whose sum is σ = 21578372006400. Its totient is φ = 21048239520000.

The previous prime is 21313013322983. The next prime is 21313013323009. The reversal of 21313013323001 is 10032331031312.

It is a cyclic number.

It is not a de Polignac number, because 21313013323001 - 2¹⁴ = 21313013306617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21313013323009) 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, 435922565 + ... + 435971453.

It is an arithmetic number, because the mean of its divisors is an integer number (1348648250400).

Almost surely, 2^{21313013323001} is an apocalyptic number.

It is an amenable number.

21313013323001 is a deficient number, since it is larger than the sum of its proper divisors (265358683399).

21313013323001 is a wasteful number, since it uses less digits than its factorization.

21313013323001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54760.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21313013323001 its reverse (10032331031312), we get a palindrome (31345344354313).

The spelling of 21313013323001 in words is "twenty-one trillion, three hundred thirteen billion, thirteen million, three hundred twenty-three thousand, one".