140021334020 has 48 divisors (see below), whose sum is σ = 312954869808. Its totient is φ = 52440760320.

The previous prime is 140021334017. The next prime is 140021334031. The reversal of 140021334020 is 20433120041.

It can be written as a sum of positive squares in 8 ways, for example, as 4843046464 + 135178287556 = 69592^2 + 367666^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 140021333983 and 140021334001.

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 15 ways as a sum of consecutive naturals, for example, 1001291 + ... + 1132530.

It is an arithmetic number, because the mean of its divisors is an integer number (6519893121).

Almost surely, 2^140021334020 is an apocalyptic number.

140021334020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140021334020 is an abundant number, since it is smaller than the sum of its proper divisors (172933535788).

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

140021334020 is a wasteful number, since it uses less digits than its factorization.

140021334020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134040 (or 2134038 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 140021334020 its reverse (20433120041), we get a palindrome (160454454061).

The spelling of 140021334020 in words is "one hundred forty billion, twenty-one million, three hundred thirty-four thousand, twenty".