20131411431 has 4 divisors (see below), whose sum is σ = 26841881912. Its totient is φ = 13420940952.

The previous prime is 20131411423. The next prime is 20131411459. The reversal of 20131411431 is 13411413102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20131411431 - 2³ = 20131411423 is a prime.

It is a super-2 number, since 2×20131411431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20131411398 and 20131411407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131411231) 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, 3355235236 + ... + 3355235241.

It is an arithmetic number, because the mean of its divisors is an integer number (6710470478).

Almost surely, 2^20131411431 is an apocalyptic number.

20131411431 is a deficient number, since it is larger than the sum of its proper divisors (6710470481).

20131411431 is an equidigital number, since it uses as much as digits as its factorization.

20131411431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6710470480.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20131411431 its reverse (13411413102), we get a palindrome (33542824533).

The spelling of 20131411431 in words is "twenty billion, one hundred thirty-one million, four hundred eleven thousand, four hundred thirty-one".