20131202343 has 16 divisors (see below), whose sum is σ = 30776049920. Its totient is φ = 11466069696.

The previous prime is 20131202327. The next prime is 20131202363. The reversal of 20131202343 is 34320213102.

It is not a de Polignac number, because 20131202343 - 2⁴ = 20131202327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131202363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554838 + ... + 1567731.

It is an arithmetic number, because the mean of its divisors is an integer number (1923503120).

Almost surely, 2^20131202343 is an apocalyptic number.

20131202343 is a deficient number, since it is larger than the sum of its proper divisors (10644847577).

20131202343 is a wasteful number, since it uses less digits than its factorization.

20131202343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122886.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20131202343 its reverse (34320213102), we get a palindrome (54451415445).

The spelling of 20131202343 in words is "twenty billion, one hundred thirty-one million, two hundred two thousand, three hundred forty-three".