13431210340 has 12 divisors (see below), whose sum is σ = 28205541756. Its totient is φ = 5372484128.

The previous prime is 13431210323. The next prime is 13431210379. The reversal of 13431210340 is 4301213431.

It can be written as a sum of positive squares in 2 ways, for example, as 3309240676 + 10121969664 = 57526^2 + 100608^2 .

It is a super-2 number, since 2×13431210340² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335780239 + ... + 335780278.

It is an arithmetic number, because the mean of its divisors is an integer number (2350461813).

Almost surely, 2^13431210340 is an apocalyptic number.

13431210340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13431210340 is an abundant number, since it is smaller than the sum of its proper divisors (14774331416).

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

13431210340 is a wasteful number, since it uses less digits than its factorization.

13431210340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671560526 (or 671560524 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13431210340 its reverse (4301213431), we get a palindrome (17732423771).

The spelling of 13431210340 in words is "thirteen billion, four hundred thirty-one million, two hundred ten thousand, three hundred forty".