101443420 has 96 divisors (see below), whose sum is σ = 247665600. Its totient is φ = 34566144.

The previous prime is 101443411. The next prime is 101443423. The reversal of 101443420 is 24344101.

It is a super-2 number, since 2×101443420² = 20581534922592800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101443423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260586 + ... + 260974.

It is an arithmetic number, because the mean of its divisors is an integer number (2579850).

Almost surely, 2^101443420 is an apocalyptic number.

101443420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101443420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123832800).

101443420 is an abundant number, since it is smaller than the sum of its proper divisors (146222180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101443420 is a wasteful number, since it uses less digits than its factorization.

101443420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 101443420 is about 10071.9124301197. The cubic root of 101443420 is about 466.3814776785.

Adding to 101443420 its reverse (24344101), we get a palindrome (125787521).

The spelling of 101443420 in words is "one hundred one million, four hundred forty-three thousand, four hundred twenty".