201839213234 has 12 divisors (see below), whose sum is σ = 319532162814. Its totient is φ = 95608048032.

The previous prime is 201839213231. The next prime is 201839213267. The reversal of 201839213234 is 432312938102.

It can be written as a sum of positive squares in only one way, i.e., 190056762025 + 11782451209 = 435955^2 + 108547^2 .

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (201839213231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139777127 + ... + 139778570.

Almost surely, 2^201839213234 is an apocalyptic number.

201839213234 is a deficient number, since it is larger than the sum of its proper divisors (117692949580).

201839213234 is a wasteful number, since it uses less digits than its factorization.

201839213234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279555737 (or 279555718 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 201839213234 in words is "two hundred one billion, eight hundred thirty-nine million, two hundred thirteen thousand, two hundred thirty-four".