140450442331 has 4 divisors (see below), whose sum is σ = 140635003464. Its totient is φ = 140265881200.

The previous prime is 140450442313. The next prime is 140450442367. The reversal of 140450442331 is 133244054041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140450442331 - 2³³ = 131860507739 is a prime.

It is a super-2 number, since 2×140450442331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140450442293 and 140450442302.

It is not an unprimeable number, because it can be changed into a prime (140450442731) 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, 92279425 + ... + 92280946.

It is an arithmetic number, because the mean of its divisors is an integer number (35158750866).

Almost surely, 2^140450442331 is an apocalyptic number.

140450442331 is a deficient number, since it is larger than the sum of its proper divisors (184561133).

140450442331 is an equidigital number, since it uses as much as digits as its factorization.

140450442331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184561132.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 140450442331 its reverse (133244054041), we get a palindrome (273694496372).

The spelling of 140450442331 in words is "one hundred forty billion, four hundred fifty million, four hundred forty-two thousand, three hundred thirty-one".