142003121033 has 4 divisors (see below), whose sum is σ = 142249227540. Its totient is φ = 141757014528.

The previous prime is 142003121027. The next prime is 142003121041. The reversal of 142003121033 is 330121300241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330121300241 = 15683 ⋅21049627.

It can be written as a sum of positive squares in 2 ways, for example, as 120206437264 + 21796683769 = 346708^2 + 147637^2 .

It is a cyclic number.

It is not a de Polignac number, because 142003121033 - 2¹⁶ = 142003055497 is a prime.

It is a super-2 number, since 2×142003121033² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142003120996 and 142003121014.

It is not an unprimeable number, because it can be changed into a prime (142003121093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123052388 + ... + 123053541.

It is an arithmetic number, because the mean of its divisors is an integer number (35562306885).

Almost surely, 2^142003121033 is an apocalyptic number.

It is an amenable number.

142003121033 is a deficient number, since it is larger than the sum of its proper divisors (246106507).

142003121033 is an equidigital number, since it uses as much as digits as its factorization.

142003121033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246106506.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 142003121033 its reverse (330121300241), we get a palindrome (472124421274).

The spelling of 142003121033 in words is "one hundred forty-two billion, three million, one hundred twenty-one thousand, thirty-three".