110121505442 has 16 divisors (see below), whose sum is σ = 177964932600. Its totient is φ = 50803496832.

The previous prime is 110121505399. The next prime is 110121505447. The reversal of 110121505442 is 244505121011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 67470582001 + 42650923441 = 259751^2 + 206521^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (110121505447) 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, 847067 + ... + 968382.

Almost surely, 2^110121505442 is an apocalyptic number.

110121505442 is a deficient number, since it is larger than the sum of its proper divisors (67843427158).

110121505442 is a wasteful number, since it uses less digits than its factorization.

110121505442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817797.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 110121505442 its reverse (244505121011), we get a palindrome (354626626453).

The spelling of 110121505442 in words is "one hundred ten billion, one hundred twenty-one million, five hundred five thousand, four hundred forty-two".