101025420 has 48 divisors (see below), whose sum is σ = 288217440. Its totient is φ = 26430976.

The previous prime is 101025389. The next prime is 101025443. The reversal of 101025420 is 24520101.

It is a super-2 number, since 2×101025420² = 20412270972352800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101025420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12705 + ... + 19064.

It is an arithmetic number, because the mean of its divisors is an integer number (6004530).

Almost surely, 2^101025420 is an apocalyptic number.

101025420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101025420 is an abundant number, since it is smaller than the sum of its proper divisors (187192020).

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

101025420 is a wasteful number, since it uses less digits than its factorization.

101025420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31834 (or 31832 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 101025420 is about 10051.1402338242. The cubic root of 101025420 is about 465.7400172000.

Adding to 101025420 its reverse (24520101), we get a palindrome (125545521).

The spelling of 101025420 in words is "one hundred one million, twenty-five thousand, four hundred twenty".