2142133021 has 16 divisors (see below), whose sum is σ = 2507497344. Its totient is φ = 1791687744.

The previous prime is 2142132983. The next prime is 2142133039. The reversal of 2142133021 is 1203312412.

It is a happy number.

It is not a de Polignac number, because 2142133021 - 2¹⁵ = 2142100253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2142133021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142133051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381591 + ... + 387163.

It is an arithmetic number, because the mean of its divisors is an integer number (156718584).

Almost surely, 2^2142133021 is an apocalyptic number.

It is an amenable number.

2142133021 is a deficient number, since it is larger than the sum of its proper divisors (365364323).

2142133021 is a wasteful number, since it uses less digits than its factorization.

2142133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2142133021 is about 46283.1829177726. The cubic root of 2142133021 is about 1289.0867524187.

Adding to 2142133021 its reverse (1203312412), we get a palindrome (3345445433).

The spelling of 2142133021 in words is "two billion, one hundred forty-two million, one hundred thirty-three thousand, twenty-one".