39204140231 has 2 divisors, whose sum is σ = 39204140232. Its totient is φ = 39204140230.

The previous prime is 39204140179. The next prime is 39204140233. The reversal of 39204140231 is 13204140293.

It is a strong prime.

It is an emirp because it is prime and its reverse (13204140293) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39204140231 - 2²² = 39199945927 is a prime.

It is a super-2 number, since 2×39204140231² (a number of 22 digits) contains 22 as substring.

Together with 39204140233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 39204140194 and 39204140203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39204140233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19602070115 + 19602070116.

It is an arithmetic number, because the mean of its divisors is an integer number (19602070116).

Almost surely, 2^39204140231 is an apocalyptic number.

39204140231 is a deficient number, since it is larger than the sum of its proper divisors (1).

39204140231 is an equidigital number, since it uses as much as digits as its factorization.

39204140231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 39204140231 in words is "thirty-nine billion, two hundred four million, one hundred forty thousand, two hundred thirty-one".