13021323340 has 12 divisors (see below), whose sum is σ = 27344779056. Its totient is φ = 5208529328.

The previous prime is 13021323311. The next prime is 13021323347. The reversal of 13021323340 is 4332312031.

It is not an unprimeable number, because it can be changed into a prime (13021323347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325533064 + ... + 325533103.

It is an arithmetic number, because the mean of its divisors is an integer number (2278731588).

Almost surely, 2^13021323340 is an apocalyptic number.

13021323340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13021323340 is an abundant number, since it is smaller than the sum of its proper divisors (14323455716).

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

13021323340 is a wasteful number, since it uses less digits than its factorization.

13021323340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651066176 (or 651066174 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13021323340 its reverse (4332312031), we get a palindrome (17353635371).

The spelling of 13021323340 in words is "thirteen billion, twenty-one million, three hundred twenty-three thousand, three hundred forty".