101321301440 has 56 divisors (see below), whose sum is σ = 241320017232. Its totient is φ = 40520345600.

The previous prime is 101321301407. The next prime is 101321301451. The reversal of 101321301440 is 44103123101.

It is a super-2 number, since 2×101321301440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1704215 + ... + 1762665.

It is an arithmetic number, because the mean of its divisors is an integer number (4309286022).

Almost surely, 2^101321301440 is an apocalyptic number.

101321301440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101321301440 is an abundant number, since it is smaller than the sum of its proper divisors (139998715792).

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

101321301440 is an equidigital number, since it uses as much as digits as its factorization.

101321301440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63885 (or 63875 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 101321301440 its reverse (44103123101), we get a palindrome (145424424541).

The spelling of 101321301440 in words is "one hundred one billion, three hundred twenty-one million, three hundred one thousand, four hundred forty".