140304128231 has 8 divisors (see below), whose sum is σ = 142254968400. Its totient is φ = 138361608000.

The previous prime is 140304128197. The next prime is 140304128267. The reversal of 140304128231 is 132821403041.

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 140304128231 - 2²² = 140299933927 is a prime.

It is a super-2 number, since 2×140304128231² (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 = 140304128194 and 140304128203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140307128231) 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, 2046020 + ... + 2113481.

It is an arithmetic number, because the mean of its divisors is an integer number (17781871050).

Almost surely, 2^140304128231 is an apocalyptic number.

140304128231 is a deficient number, since it is larger than the sum of its proper divisors (1950840169).

140304128231 is an equidigital number, since it uses as much as digits as its factorization.

140304128231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159969.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 140304128231 in words is "one hundred forty billion, three hundred four million, one hundred twenty-eight thousand, two hundred thirty-one".