140023401104021 has 4 divisors (see below), whose sum is σ = 140687019118944. Its totient is φ = 139359783089100.

The previous prime is 140023401104017. The next prime is 140023401104099. The reversal of 140023401104021 is 120401104320041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140023401104021 - 2² = 140023401104017 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 (140023401101021) 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, 331809007145 + ... + 331809007566.

It is an arithmetic number, because the mean of its divisors is an integer number (35171754779736).

Almost surely, 2^{140023401104021} is an apocalyptic number.

It is an amenable number.

140023401104021 is a deficient number, since it is larger than the sum of its proper divisors (663618014923).

140023401104021 is an equidigital number, since it uses as much as digits as its factorization.

140023401104021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663618014922.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 140023401104021 its reverse (120401104320041), we get a palindrome (260424505424062).

The spelling of 140023401104021 in words is "one hundred forty trillion, twenty-three billion, four hundred one million, one hundred four thousand, twenty-one".