2120142267 has 48 divisors (see below), whose sum is σ = 3347259552. Its totient is φ = 1287843840.

The previous prime is 2120142263. The next prime is 2120142313. The reversal of 2120142267 is 7622410212.

It is not a de Polignac number, because 2120142267 - 2² = 2120142263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120142267.

It is not an unprimeable number, because it can be changed into a prime (2120142263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 858168 + ... + 860634.

It is an arithmetic number, because the mean of its divisors is an integer number (69734574).

Almost surely, 2^2120142267 is an apocalyptic number.

2120142267 is a deficient number, since it is larger than the sum of its proper divisors (1227117285).

2120142267 is a wasteful number, since it uses less digits than its factorization.

2120142267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668 (or 2665 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2120142267 is about 46045.0026278640. The cubic root of 2120142267 is about 1284.6603930276.

Adding to 2120142267 its reverse (7622410212), we get a palindrome (9742552479).

The spelling of 2120142267 in words is "two billion, one hundred twenty million, one hundred forty-two thousand, two hundred sixty-seven".