13215351340 has 24 divisors (see below), whose sum is σ = 27810195840. Its totient is φ = 5275100928.

The previous prime is 13215351313. The next prime is 13215351343. The reversal of 13215351340 is 4315351231.

It is a happy number.

It is a super-2 number, since 2×13215351340² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13215351299 and 13215351308.

It is not an unprimeable number, because it can be changed into a prime (13215351343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680157 + ... + 699316.

It is an arithmetic number, because the mean of its divisors is an integer number (1158758160).

Almost surely, 2^13215351340 is an apocalyptic number.

13215351340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13215351340 is an abundant number, since it is smaller than the sum of its proper divisors (14594844500).

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

13215351340 is a wasteful number, since it uses less digits than its factorization.

13215351340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379961 (or 1379959 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 13215351340 in words is "thirteen billion, two hundred fifteen million, three hundred fifty-one thousand, three hundred forty".