101231664 has 20 divisors (see below), whose sum is σ = 261515256. Its totient is φ = 33743872.

The previous prime is 101231659. The next prime is 101231687. The reversal of 101231664 is 466132101.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1054449 + ... + 1054544.

Almost surely, 2^101231664 is an apocalyptic number.

It is an amenable number.

101231664 is an abundant number, since it is smaller than the sum of its proper divisors (160283592).

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

101231664 is a wasteful number, since it uses less digits than its factorization.

101231664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109004 (or 2108998 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 101231664 is about 10061.3947343298. The cubic root of 101231664 is about 466.0567387796.

Adding to 101231664 its reverse (466132101), we get a palindrome (567363765).

The spelling of 101231664 in words is "one hundred one million, two hundred thirty-one thousand, six hundred sixty-four".