140012121443 has 8 divisors (see below), whose sum is σ = 146103955200. Its totient is φ = 133920650248.

The previous prime is 140012121439. The next prime is 140012121461. The reversal of 140012121443 is 344121210041.

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

It is a cyclic number.

It is not a de Polignac number, because 140012121443 - 2² = 140012121439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140012121463) 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, 955568 + ... + 1092306.

It is an arithmetic number, because the mean of its divisors is an integer number (18262994400).

Almost surely, 2^140012121443 is an apocalyptic number.

140012121443 is a deficient number, since it is larger than the sum of its proper divisors (6091833757).

140012121443 is a wasteful number, since it uses less digits than its factorization.

140012121443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181281.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 140012121443 its reverse (344121210041), we get a palindrome (484133331484).

The spelling of 140012121443 in words is "one hundred forty billion, twelve million, one hundred twenty-one thousand, four hundred forty-three".