210109127930 has 16 divisors (see below), whose sum is σ = 407288463624. Its totient is φ = 77578754880.

The previous prime is 210109127903. The next prime is 210109127941. The reversal of 210109127930 is 39721901012.

It can be written as a sum of positive squares in 4 ways, for example, as 136612291321 + 73496836609 = 369611^2 + 271103^2 .

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, 808111901 + ... + 808112160.

Almost surely, 2^210109127930 is an apocalyptic number.

210109127930 is a deficient number, since it is larger than the sum of its proper divisors (197179335694).

210109127930 is a wasteful number, since it uses less digits than its factorization.

210109127930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616224081.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 210109127930 in words is "two hundred ten billion, one hundred nine million, one hundred twenty-seven thousand, nine hundred thirty".