140240033124421 has 4 divisors (see below), whose sum is σ = 140240905267500. Its totient is φ = 140239160981344.

The previous prime is 140240033124413. The next prime is 140240033124491. The reversal of 140240033124421 is 124421330042041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20676436708225 + 119563596416196 = 4547135^2 + 10934514^2 .

It is a cyclic number.

It is not a de Polignac number, because 140240033124421 - 2³ = 140240033124413 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 (140240033124491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435830296 + ... + 436151953.

It is an arithmetic number, because the mean of its divisors is an integer number (35060226316875).

Almost surely, 2^{140240033124421} is an apocalyptic number.

It is an amenable number.

140240033124421 is a deficient number, since it is larger than the sum of its proper divisors (872143079).

140240033124421 is an equidigital number, since it uses as much as digits as its factorization.

140240033124421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872143078.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 140240033124421 its reverse (124421330042041), we get a palindrome (264661363166462).

The spelling of 140240033124421 in words is "one hundred forty trillion, two hundred forty billion, thirty-three million, one hundred twenty-four thousand, four hundred twenty-one".