20131015343 has 8 divisors (see below), whose sum is σ = 20220068880. Its totient is φ = 20042045440.

The previous prime is 20131015313. The next prime is 20131015381. The reversal of 20131015343 is 34351013102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20131015343 - 2⁶ = 20131015279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131015313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488813 + ... + 528393.

It is an arithmetic number, because the mean of its divisors is an integer number (2527508610).

Almost surely, 2^20131015343 is an apocalyptic number.

20131015343 is a deficient number, since it is larger than the sum of its proper divisors (89053537).

20131015343 is a wasteful number, since it uses less digits than its factorization.

20131015343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41817.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 20131015343 its reverse (34351013102), we get a palindrome (54482028445).

The spelling of 20131015343 in words is "twenty billion, one hundred thirty-one million, fifteen thousand, three hundred forty-three".