140312332231421 has 16 divisors (see below), whose sum is σ = 160383061424640. Its totient is φ = 120248132059440.

The previous prime is 140312332231397. The next prime is 140312332231439. The reversal of 140312332231421 is 124132233213041.

It is a de Polignac number, because none of the positive numbers 2^k-140312332231421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140312332221421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1655931626 + ... + 1656016356.

It is an arithmetic number, because the mean of its divisors is an integer number (10023941339040).

Almost surely, 2^{140312332231421} is an apocalyptic number.

It is an amenable number.

140312332231421 is a deficient number, since it is larger than the sum of its proper divisors (20070729193219).

140312332231421 is an equidigital number, since it uses as much as digits as its factorization.

140312332231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120464.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 140312332231421 its reverse (124132233213041), we get a palindrome (264444565444462).

The spelling of 140312332231421 in words is "one hundred forty trillion, three hundred twelve billion, three hundred thirty-two million, two hundred thirty-one thousand, four hundred twenty-one".