13140343342021 has 32 divisors (see below), whose sum is σ = 15873837056000. Its totient is φ = 10638719159040.

The previous prime is 13140343341989. The next prime is 13140343342067. The reversal of 13140343342021 is 12024334304131.

It is not a de Polignac number, because 13140343342021 - 2⁵ = 13140343341989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140343312021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12550765 + ... + 13557373.

It is an arithmetic number, because the mean of its divisors is an integer number (496057408000).

Almost surely, 2^{13140343342021} is an apocalyptic number.

It is an amenable number.

13140343342021 is a deficient number, since it is larger than the sum of its proper divisors (2733493713979).

13140343342021 is a wasteful number, since it uses less digits than its factorization.

13140343342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008089.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 13140343342021 its reverse (12024334304131), we get a palindrome (25164677646152).

The spelling of 13140343342021 in words is "thirteen trillion, one hundred forty billion, three hundred forty-three million, three hundred forty-two thousand, twenty-one".