2052023421 has 12 divisors (see below), whose sum is σ = 3182730432. Its totient is φ = 1172584728.

The previous prime is 2052023417. The next prime is 2052023459. The reversal of 2052023421 is 1243202502.

It is not a de Polignac number, because 2052023421 - 2² = 2052023417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052023321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6979525 + ... + 6979818.

It is an arithmetic number, because the mean of its divisors is an integer number (265227536).

Almost surely, 2^2052023421 is an apocalyptic number.

2052023421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2052023421 is a deficient number, since it is larger than the sum of its proper divisors (1130707011).

2052023421 is a wasteful number, since it uses less digits than its factorization.

2052023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13959360 (or 13959353 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2052023421 is about 45299.2651264896. The cubic root of 2052023421 is about 1270.7519099181.

Adding to 2052023421 its reverse (1243202502), we get a palindrome (3295225923).

The spelling of 2052023421 in words is "two billion, fifty-two million, twenty-three thousand, four hundred twenty-one".