20110101242 has 16 divisors (see below), whose sum is σ = 37608501312. Its totient is φ = 7835104320.

The previous prime is 20110101241. The next prime is 20110101257. The reversal of 20110101242 is 24210101102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (20110101241) 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, 65292383 + ... + 65292690.

It is an arithmetic number, because the mean of its divisors is an integer number (2350531332).

Almost surely, 2^20110101242 is an apocalyptic number.

20110101242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20110101242 is a deficient number, since it is larger than the sum of its proper divisors (17498400070).

20110101242 is a wasteful number, since it uses less digits than its factorization.

20110101242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130585093.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20110101242 its reverse (24210101102), we get a palindrome (44320202344).

The spelling of 20110101242 in words is "twenty billion, one hundred ten million, one hundred one thousand, two hundred forty-two".