2002001142 has 32 divisors (see below), whose sum is σ = 4139688960. Its totient is φ = 644787360.

The previous prime is 2002001123. The next prime is 2002001189. The reversal of 2002001142 is 2411002002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114408 + ... + 130740.

It is an arithmetic number, because the mean of its divisors is an integer number (129365280).

Almost surely, 2^2002001142 is an apocalyptic number.

2002001142 is an abundant number, since it is smaller than the sum of its proper divisors (2137687818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2002001142 is a wasteful number, since it uses less digits than its factorization.

2002001142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17028.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2002001142 is about 44743.7274039613. The cubic root of 2002001142 is about 1260.3411233099.

Adding to 2002001142 its reverse (2411002002), we get a palindrome (4413003144).

The spelling of 2002001142 in words is "two billion, two million, one thousand, one hundred forty-two".