140861206321 has 48 divisors (see below), whose sum is σ = 168552921600. Its totient is φ = 117165312000.

The previous prime is 140861206313. The next prime is 140861206331. The reversal of 140861206321 is 123602168041.

It is not a de Polignac number, because 140861206321 - 2³ = 140861206313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140861206331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14593705 + ... + 14603353.

It is an arithmetic number, because the mean of its divisors is an integer number (3511519200).

Almost surely, 2^140861206321 is an apocalyptic number.

140861206321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140861206321 is a deficient number, since it is larger than the sum of its proper divisors (27691715279).

140861206321 is a wasteful number, since it uses less digits than its factorization.

140861206321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9886 (or 9875 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 140861206321 in words is "one hundred forty billion, eight hundred sixty-one million, two hundred six thousand, three hundred twenty-one".