140223404323421 has 8 divisors (see below), whose sum is σ = 141430857530688. Its totient is φ = 139018027564000.

The previous prime is 140223404323403. The next prime is 140223404323433. The reversal of 140223404323421 is 124323404322041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140223404323421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140223404323621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518976320 + ... + 519246441.

It is an arithmetic number, because the mean of its divisors is an integer number (17678857191336).

Almost surely, 2^{140223404323421} is an apocalyptic number.

It is an amenable number.

140223404323421 is a deficient number, since it is larger than the sum of its proper divisors (1207453207267).

140223404323421 is a wasteful number, since it uses less digits than its factorization.

140223404323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038223923.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 140223404323421 its reverse (124323404322041), we get a palindrome (264546808645462).

The spelling of 140223404323421 in words is "one hundred forty trillion, two hundred twenty-three billion, four hundred four million, three hundred twenty-three thousand, four hundred twenty-one".