1071211830 has 64 divisors (see below), whose sum is σ = 2914410240. Its totient is φ = 249803136.

The previous prime is 1071211819. The next prime is 1071211873. The reversal of 1071211830 is 381121701.

It is a happy number.

It is a super-2 number, since 2×1071211830² = 2294989569463897800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1071211830.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 64872 + ... + 79691.

It is an arithmetic number, because the mean of its divisors is an integer number (45537660).

Almost surely, 2^1071211830 is an apocalyptic number.

1071211830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1071211830 is an abundant number, since it is smaller than the sum of its proper divisors (1843198410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1071211830 is a wasteful number, since it uses less digits than its factorization.

1071211830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144605.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 1071211830 is about 32729.3725879370. The cubic root of 1071211830 is about 1023.1951040596.

The spelling of 1071211830 in words is "one billion, seventy-one million, two hundred eleven thousand, eight hundred thirty".