140000021000 has 64 divisors (see below), whose sum is σ = 374400074880. Its totient is φ = 48000004800.

The previous prime is 140000020991. The next prime is 140000021027. The reversal of 140000021000 is 120000041.

It is a Harshad number since it is a multiple of its sum of digits (8).

140000021000 is a modest number, since divided by 21000 gives 14000 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9993002 + ... + 10007001.

It is an arithmetic number, because the mean of its divisors is an integer number (5850001170).

Almost surely, 2^140000021000 is an apocalyptic number.

140000021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140000021000 is an abundant number, since it is smaller than the sum of its proper divisors (234400053880).

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

140000021000 is a wasteful number, since it uses less digits than its factorization.

140000021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20000031 (or 20000017 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 140000021000 its reverse (120000041), we get a palindrome (140120021041).

The spelling of 140000021000 in words is "one hundred forty billion, twenty-one thousand".