140342012321 has 16 divisors (see below), whose sum is σ = 160801200000. Its totient is φ = 119985589248.

The previous prime is 140342012309. The next prime is 140342012323. The reversal of 140342012321 is 123210243041.

It is not a de Polignac number, because 140342012321 - 2³⁰ = 139268270497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140342012323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13361930 + ... + 13372428.

It is an arithmetic number, because the mean of its divisors is an integer number (10050075000).

Almost surely, 2^140342012321 is an apocalyptic number.

It is an amenable number.

140342012321 is a deficient number, since it is larger than the sum of its proper divisors (20459187679).

140342012321 is a wasteful number, since it uses less digits than its factorization.

140342012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15208.

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

Adding to 140342012321 its reverse (123210243041), we get a palindrome (263552255362).

The spelling of 140342012321 in words is "one hundred forty billion, three hundred forty-two million, twelve thousand, three hundred twenty-one".