142040121044 has 12 divisors (see below), whose sum is σ = 248580457524. Its totient is φ = 71017133184.

The previous prime is 142040121037. The next prime is 142040121137. The reversal of 142040121044 is 440121040241.

It can be written as a sum of positive squares in 2 ways, for example, as 65428524100 + 76611596944 = 255790^2 + 276788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620789 + ... + 818204.

It is an arithmetic number, because the mean of its divisors is an integer number (20715038127).

Almost surely, 2^142040121044 is an apocalyptic number.

It is an amenable number.

142040121044 is a deficient number, since it is larger than the sum of its proper divisors (106540336480).

142040121044 is a wasteful number, since it uses less digits than its factorization.

142040121044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463674 (or 1463672 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 142040121044 its reverse (440121040241), we get a palindrome (582161161285).

The spelling of 142040121044 in words is "one hundred forty-two billion, forty million, one hundred twenty-one thousand, forty-four".