671025011 has 2 divisors, whose sum is σ = 671025012. Its totient is φ = 671025010.

The previous prime is 671024993. The next prime is 671025029. The reversal of 671025011 is 110520176.

It is a balanced prime because it is at equal distance from previous prime (671024993) and next prime (671025029).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671025011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (671025031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335512505 + 335512506.

It is an arithmetic number, because the mean of its divisors is an integer number (335512506).

Almost surely, 2^671025011 is an apocalyptic number.

671025011 is a deficient number, since it is larger than the sum of its proper divisors (1).

671025011 is an equidigital number, since it uses as much as digits as its factorization.

671025011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 671025011 is about 25904.1504589516. The cubic root of 671025011 is about 875.4800135207.

Adding to 671025011 its reverse (110520176), we get a palindrome (781545187).

The spelling of 671025011 in words is "six hundred seventy-one million, twenty-five thousand, eleven".