140523021200 has 30 divisors (see below), whose sum is σ = 337606559394. Its totient is φ = 56209208320.

The previous prime is 140523021187. The next prime is 140523021203. The reversal of 140523021200 is 2120325041.

It can be written as a sum of positive squares in 3 ways, for example, as 2704 + 140523018496 = 52^2 + 374864^2 .

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

It is not an unprimeable number, because it can be changed into a prime (140523021203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175653377 + ... + 175654176.

Almost surely, 2^140523021200 is an apocalyptic number.

140523021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140523021200 is an abundant number, since it is smaller than the sum of its proper divisors (197083538194).

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

140523021200 is a wasteful number, since it uses less digits than its factorization.

140523021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351307571 (or 351307560 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 140523021200 its reverse (2120325041), we get a palindrome (142643346241).

The spelling of 140523021200 in words is "one hundred forty billion, five hundred twenty-three million, twenty-one thousand, two hundred".