140012000323421 has 4 divisors (see below), whose sum is σ = 140216995932192. Its totient is φ = 139807004714652.

The previous prime is 140012000323361. The next prime is 140012000323501. The reversal of 140012000323421 is 124323000210041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140012000323421 is a prime.

It is a super-2 number, since 2×140012000323421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140012003323421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102497803361 + ... + 102497804726.

It is an arithmetic number, because the mean of its divisors is an integer number (35054248983048).

Almost surely, 2^{140012000323421} is an apocalyptic number.

It is an amenable number.

140012000323421 is a deficient number, since it is larger than the sum of its proper divisors (204995608771).

140012000323421 is an equidigital number, since it uses as much as digits as its factorization.

140012000323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204995608770.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 140012000323421 its reverse (124323000210041), we get a palindrome (264335000533462).

The spelling of 140012000323421 in words is "one hundred forty trillion, twelve billion, three hundred twenty-three thousand, four hundred twenty-one".