20010120238 has 16 divisors (see below), whose sum is σ = 30874805136. Its totient is φ = 9722471040.

The previous prime is 20010120217. The next prime is 20010120239. The reversal of 20010120238 is 83202101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010120239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977931 + ... + 998182.

It is an arithmetic number, because the mean of its divisors is an integer number (1929675321).

Almost surely, 2^20010120238 is an apocalyptic number.

20010120238 is a deficient number, since it is larger than the sum of its proper divisors (10864684898).

20010120238 is a wasteful number, since it uses less digits than its factorization.

20010120238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976259.

The product of its (nonzero) digits is 192, while the sum is 19.

The spelling of 20010120238 in words is "twenty billion, ten million, one hundred twenty thousand, two hundred thirty-eight".