671111030 has 16 divisors (see below), whose sum is σ = 1210797504. Its totient is φ = 267822720.

The previous prime is 671111029. The next prime is 671111047. The reversal of 671111030 is 30111176.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 671110993 and 671111011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73166 + ... + 81825.

It is an arithmetic number, because the mean of its divisors is an integer number (75674844).

Almost surely, 2^671111030 is an apocalyptic number.

671111030 is a deficient number, since it is larger than the sum of its proper divisors (539686474).

671111030 is a wasteful number, since it uses less digits than its factorization.

671111030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155431.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 671111030 is about 25905.8107381336. The cubic root of 671111030 is about 875.5174213154.

The spelling of 671111030 in words is "six hundred seventy-one million, one hundred eleven thousand, thirty".