204206070031 has 2 divisors, whose sum is σ = 204206070032. Its totient is φ = 204206070030.

The previous prime is 204206070023. The next prime is 204206070037. The reversal of 204206070031 is 130070602402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204206070031 - 2³ = 204206070023 is a prime.

It is a super-2 number, since 2×204206070031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204206069978 and 204206070005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204206070037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102103035015 + 102103035016.

It is an arithmetic number, because the mean of its divisors is an integer number (102103035016).

Almost surely, 2^204206070031 is an apocalyptic number.

204206070031 is a deficient number, since it is larger than the sum of its proper divisors (1).

204206070031 is an equidigital number, since it uses as much as digits as its factorization.

204206070031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 204206070031 its reverse (130070602402), we get a palindrome (334276672433).

The spelling of 204206070031 in words is "two hundred four billion, two hundred six million, seventy thousand, thirty-one".