140421315531 has 8 divisors (see below), whose sum is σ = 213975337984. Its totient is φ = 80240751720.

The previous prime is 140421315521. The next prime is 140421315611. The reversal of 140421315531 is 135513124041.

140421315531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 140421315531 - 2⁶ = 140421315467 is a prime.

It is a super-2 number, since 2×140421315531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140421315521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3343364635 + ... + 3343364676.

It is an arithmetic number, because the mean of its divisors is an integer number (26746917248).

Almost surely, 2^140421315531 is an apocalyptic number.

140421315531 is a deficient number, since it is larger than the sum of its proper divisors (73554022453).

140421315531 is an equidigital number, since it uses as much as digits as its factorization.

140421315531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686729321.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 140421315531 its reverse (135513124041), we get a palindrome (275934439572).

The spelling of 140421315531 in words is "one hundred forty billion, four hundred twenty-one million, three hundred fifteen thousand, five hundred thirty-one".