140101113421 has 4 divisors (see below), whose sum is σ = 141041389500. Its totient is φ = 139160837344.

The previous prime is 140101113419. The next prime is 140101113463. The reversal of 140101113421 is 124311101041.

140101113421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124311101041 = 1163 ⋅106888307.

It can be written as a sum of positive squares in 2 ways, for example, as 63670428900 + 76430684521 = 252330^2 + 276461^2 .

It is a cyclic number.

It is not a de Polignac number, because 140101113421 - 2¹ = 140101113419 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 (140101113821) 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 3 ways as a sum of consecutive naturals, for example, 470137816 + ... + 470138113.

It is an arithmetic number, because the mean of its divisors is an integer number (35260347375).

Almost surely, 2^140101113421 is an apocalyptic number.

It is an amenable number.

140101113421 is a deficient number, since it is larger than the sum of its proper divisors (940276079).

140101113421 is an equidigital number, since it uses as much as digits as its factorization.

140101113421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940276078.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 140101113421 its reverse (124311101041), we get a palindrome (264412214462).

The spelling of 140101113421 in words is "one hundred forty billion, one hundred one million, one hundred thirteen thousand, four hundred twenty-one".