212103504034 has 4 divisors (see below), whose sum is σ = 318155256054. Its totient is φ = 106051752016.

The previous prime is 212103504031. The next prime is 212103504043. The reversal of 212103504034 is 430405301212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 122813099809 + 89290404225 = 350447^2 + 298815^2 .

It is not an unprimeable number, because it can be changed into a prime (212103504031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53025876007 + ... + 53025876010.

Almost surely, 2^212103504034 is an apocalyptic number.

212103504034 is a deficient number, since it is larger than the sum of its proper divisors (106051752020).

212103504034 is a wasteful number, since it uses less digits than its factorization.

212103504034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106051752019.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 212103504034 its reverse (430405301212), we get a palindrome (642508805246).

The spelling of 212103504034 in words is "two hundred twelve billion, one hundred three million, five hundred four thousand, thirty-four".