213900642106 has 8 divisors (see below), whose sum is σ = 321129241524. Its totient is φ = 106857561600.

The previous prime is 213900642101. The next prime is 213900642107. The reversal of 213900642106 is 601246009312.

It is a happy number.

213900642106 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 195798285081 + 18102357025 = 442491^2 + 134545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (213900642101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46376845 + ... + 46381456.

Almost surely, 2^213900642106 is an apocalyptic number.

213900642106 is a deficient number, since it is larger than the sum of its proper divisors (107228599418).

213900642106 is a wasteful number, since it uses less digits than its factorization.

213900642106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92759456.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 213900642106 in words is "two hundred thirteen billion, nine hundred million, six hundred forty-two thousand, one hundred six".