140331401421 has 8 divisors (see below), whose sum is σ = 187137123264. Its totient is φ = 93539973600.

The previous prime is 140331401407. The next prime is 140331401429. The reversal of 140331401421 is 124104133041.

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

It is not a de Polignac number, because 140331401421 - 2¹⁷ = 140331270349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140331401391 and 140331401400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140331401429) 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, 3550576 + ... + 3589881.

It is an arithmetic number, because the mean of its divisors is an integer number (23392140408).

Almost surely, 2^140331401421 is an apocalyptic number.

It is an amenable number.

140331401421 is a deficient number, since it is larger than the sum of its proper divisors (46805721843).

140331401421 is an equidigital number, since it uses as much as digits as its factorization.

140331401421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147011.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 140331401421 its reverse (124104133041), we get a palindrome (264435534462).

The spelling of 140331401421 in words is "one hundred forty billion, three hundred thirty-one million, four hundred one thousand, four hundred twenty-one".