2150021423 has 16 divisors (see below), whose sum is σ = 2360440320. Its totient is φ = 1942142400.

The previous prime is 2150021417. The next prime is 2150021431. The reversal of 2150021423 is 3241200512.

It is not a de Polignac number, because 2150021423 - 2⁶ = 2150021359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2150021395 and 2150021404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150021453) 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, 1335443 + ... + 1337051.

It is an arithmetic number, because the mean of its divisors is an integer number (147527520).

Almost surely, 2^2150021423 is an apocalyptic number.

2150021423 is a deficient number, since it is larger than the sum of its proper divisors (210418897).

2150021423 is a wasteful number, since it uses less digits than its factorization.

2150021423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2150021423 is about 46368.3234870531. The cubic root of 2150021423 is about 1290.6671674615.

Adding to 2150021423 its reverse (3241200512), we get a palindrome (5391221935).

Subtracting 2150021423 from its reverse (3241200512), we obtain a square (1091179089 = 33033²).

The spelling of 2150021423 in words is "two billion, one hundred fifty million, twenty-one thousand, four hundred twenty-three".