140312321244 has 18 divisors (see below), whose sum is σ = 354678367680. Its totient is φ = 46770773736.

The previous prime is 140312321243. The next prime is 140312321249. The reversal of 140312321244 is 442123213041.

140312321244 is a `hidden beast` number, since 1 + 4 + 0 + 312 + 321 + 24 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140312321243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1948782204 + ... + 1948782275.

It is an arithmetic number, because the mean of its divisors is an integer number (19704353760).

Almost surely, 2^140312321244 is an apocalyptic number.

It is an amenable number.

140312321244 is an abundant number, since it is smaller than the sum of its proper divisors (214366046436).

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

140312321244 is a wasteful number, since it uses less digits than its factorization.

140312321244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897564489 (or 3897564484 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 140312321244 its reverse (442123213041), we get a palindrome (582435534285).

The spelling of 140312321244 in words is "one hundred forty billion, three hundred twelve million, three hundred twenty-one thousand, two hundred forty-four".