101025430 has 64 divisors (see below), whose sum is σ = 210221568. Its totient is φ = 34594560.

The previous prime is 101025389. The next prime is 101025443. The reversal of 101025430 is 34520101.

It is a super-2 number, since 2×101025430² = 20412275013369800, which contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 184417 + ... + 184963.

It is an arithmetic number, because the mean of its divisors is an integer number (3284712).

Almost surely, 2^101025430 is an apocalyptic number.

101025430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101025430 is an abundant number, since it is smaller than the sum of its proper divisors (109196138).

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

101025430 is a wasteful number, since it uses less digits than its factorization.

101025430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 101025430 is about 10051.1407312802. The cubic root of 101025430 is about 465.7400325671.

Adding to 101025430 its reverse (34520101), we get a palindrome (135545531).

The spelling of 101025430 in words is "one hundred one million, twenty-five thousand, four hundred thirty".