780031016231 has 2 divisors, whose sum is σ = 780031016232. Its totient is φ = 780031016230.

The previous prime is 780031016227. The next prime is 780031016273. The reversal of 780031016231 is 132610130087.

It is a weak prime.

It is an emirp because it is prime and its reverse (132610130087) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 780031016231 - 2² = 780031016227 is a prime.

It is a super-2 number, since 2×780031016231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (780031012231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390015508115 + 390015508116.

It is an arithmetic number, because the mean of its divisors is an integer number (390015508116).

Almost surely, 2^780031016231 is an apocalyptic number.

780031016231 is a deficient number, since it is larger than the sum of its proper divisors (1).

780031016231 is an equidigital number, since it uses as much as digits as its factorization.

780031016231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 780031016231 in words is "seven hundred eighty billion, thirty-one million, sixteen thousand, two hundred thirty-one".