1400144320021 has 8 divisors (see below), whose sum is σ = 1410439775040. Its totient is φ = 1389849958368.

The previous prime is 1400144319991. The next prime is 1400144320039. The reversal of 1400144320021 is 1200234410041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1400144320021 - 2⁵ = 1400144319989 is a prime.

It is a super-2 number, since 2×1400144320021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400144319974 and 1400144320001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400144324021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392440 + ... + 2919598.

It is an arithmetic number, because the mean of its divisors is an integer number (176304971880).

Almost surely, 2^{1400144320021} is an apocalyptic number.

It is an amenable number.

1400144320021 is a deficient number, since it is larger than the sum of its proper divisors (10295455019).

1400144320021 is a wasteful number, since it uses less digits than its factorization.

1400144320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546683.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1400144320021 its reverse (1200234410041), we get a palindrome (2600378730062).

The spelling of 1400144320021 in words is "one trillion, four hundred billion, one hundred forty-four million, three hundred twenty thousand, twenty-one".