213444101109 has 16 divisors (see below), whose sum is σ = 285364518912. Its totient is φ = 141910391088.

The previous prime is 213444101099. The next prime is 213444101113. The reversal of 213444101109 is 901101444312.

It is not a de Polignac number, because 213444101109 - 2⁷ = 213444100981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213444101909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611372 + ... + 1738794.

It is an arithmetic number, because the mean of its divisors is an integer number (17835282432).

Almost surely, 2^213444101109 is an apocalyptic number.

It is an amenable number.

213444101109 is a deficient number, since it is larger than the sum of its proper divisors (71920417803).

213444101109 is a wasteful number, since it uses less digits than its factorization.

213444101109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128936.

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 213444101109 in words is "two hundred thirteen billion, four hundred forty-four million, one hundred one thousand, one hundred nine".