101420420 has 24 divisors (see below), whose sum is σ = 213482304. Its totient is φ = 40473056.

The previous prime is 101420411. The next prime is 101420443. The reversal of 101420420 is 24024101.

It is a super-2 number, since 2×101420420² = 20572203185952800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101420395 and 101420404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3137 + ... + 14583.

It is an arithmetic number, because the mean of its divisors is an integer number (8895096).

Almost surely, 2^101420420 is an apocalyptic number.

101420420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101420420 is an abundant number, since it is smaller than the sum of its proper divisors (112061884).

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

101420420 is a wasteful number, since it uses less digits than its factorization.

101420420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11899 (or 11897 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 101420420 is about 10070.7705762767. The cubic root of 101420420 is about 466.3462278654.

Adding to 101420420 its reverse (24024101), we get a palindrome (125444521).

The spelling of 101420420 in words is "one hundred one million, four hundred twenty thousand, four hundred twenty".