103143440021 has 8 divisors (see below), whose sum is σ = 103468139520. Its totient is φ = 102818899008.

The previous prime is 103143440003. The next prime is 103143440027. The reversal of 103143440021 is 120044341301.

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 103143440021 - 2¹⁰ = 103143438997 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 (103143440027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1339085 + ... + 1414013.

It is an arithmetic number, because the mean of its divisors is an integer number (12933517440).

Almost surely, 2^103143440021 is an apocalyptic number.

It is an amenable number.

103143440021 is a deficient number, since it is larger than the sum of its proper divisors (324699499).

103143440021 is an equidigital number, since it uses as much as digits as its factorization.

103143440021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79243.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 103143440021 its reverse (120044341301), we get a palindrome (223187781322).

The spelling of 103143440021 in words is "one hundred three billion, one hundred forty-three million, four hundred forty thousand, twenty-one".