2021142141 has 6 divisors (see below), whose sum is σ = 2919427550. Its totient is φ = 1347428088.

The previous prime is 2021142133. The next prime is 2021142199. The reversal of 2021142141 is 1412411202.

2021142141 is a `hidden beast` number, since 202 + 1 + 1 + 421 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1117899225 + 903242916 = 33435^2 + 30054^2 .

It is not a de Polignac number, because 2021142141 - 2³ = 2021142133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021102141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112285666 + ... + 112285683.

Almost surely, 2^2021142141 is an apocalyptic number.

It is an amenable number.

2021142141 is a deficient number, since it is larger than the sum of its proper divisors (898285409).

2021142141 is a wasteful number, since it uses less digits than its factorization.

2021142141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224571355 (or 224571352 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2021142141 is about 44957.1144647874. The cubic root of 2021142141 is about 1264.3450688650.

Adding to 2021142141 its reverse (1412411202), we get a palindrome (3433553343).

The spelling of 2021142141 in words is "two billion, twenty-one million, one hundred forty-two thousand, one hundred forty-one".