101402720 has 24 divisors (see below), whose sum is σ = 239564304. Its totient is φ = 40561024.

The previous prime is 101402713. The next prime is 101402731. The reversal of 101402720 is 27204101.

It is a congruent number.

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, 316724 + ... + 317043.

It is an arithmetic number, because the mean of its divisors is an integer number (9981846).

Almost surely, 2^101402720 is an apocalyptic number.

101402720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101402720 is an abundant number, since it is smaller than the sum of its proper divisors (138161584).

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

101402720 is an equidigital number, since it uses as much as digits as its factorization.

101402720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633782 (or 633774 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 101402720 is about 10069.8917571144. The cubic root of 101402720 is about 466.3190972065.

Adding to 101402720 its reverse (27204101), we get a palindrome (128606821).

The spelling of 101402720 in words is "one hundred one million, four hundred two thousand, seven hundred twenty".