101231628 has 12 divisors (see below), whose sum is σ = 236207160. Its totient is φ = 33743872.

The previous prime is 101231609. The next prime is 101231633. The reversal of 101231628 is 826132101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 101231598 and 101231607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4217973 + ... + 4217996.

It is an arithmetic number, because the mean of its divisors is an integer number (19683930).

Almost surely, 2^101231628 is an apocalyptic number.

It is an amenable number.

101231628 is an abundant number, since it is smaller than the sum of its proper divisors (134975532).

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

101231628 is a wasteful number, since it uses less digits than its factorization.

101231628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8435976 (or 8435974 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 101231628 is about 10061.3929453133. The cubic root of 101231628 is about 466.0566835332.

Adding to 101231628 its reverse (826132101), we get a palindrome (927363729).

It can be divided in two parts, 1012 and 31628, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 101231628 in words is "one hundred one million, two hundred thirty-one thousand, six hundred twenty-eight".