20214333431 has 2 divisors, whose sum is σ = 20214333432. Its totient is φ = 20214333430.

The previous prime is 20214333427. The next prime is 20214333457. The reversal of 20214333431 is 13433341202.

It is an a-pointer prime, because the next prime (20214333457) can be obtained adding 20214333431 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20214333431 - 2² = 20214333427 is a prime.

It is a super-2 number, since 2×20214333431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20214333431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20214333131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107166715 + 10107166716.

It is an arithmetic number, because the mean of its divisors is an integer number (10107166716).

Almost surely, 2^20214333431 is an apocalyptic number.

20214333431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20214333431 is an equidigital number, since it uses as much as digits as its factorization.

20214333431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20214333431 its reverse (13433341202), we get a palindrome (33647674633).

The spelling of 20214333431 in words is "twenty billion, two hundred fourteen million, three hundred thirty-three thousand, four hundred thirty-one".