103444142421 has 32 divisors (see below), whose sum is σ = 142866696960. Its totient is φ = 66525359616.

The previous prime is 103444142413. The next prime is 103444142443. The reversal of 103444142421 is 124241444301.

It is a happy number.

It is not a de Polignac number, because 103444142421 - 2³ = 103444142413 is a prime.

It is a super-2 number, since 2×103444142421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103444142411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13484775 + ... + 13492443.

It is an arithmetic number, because the mean of its divisors is an integer number (4464584280).

Almost surely, 2^103444142421 is an apocalyptic number.

It is an amenable number.

103444142421 is a deficient number, since it is larger than the sum of its proper divisors (39422554539).

103444142421 is a wasteful number, since it uses less digits than its factorization.

103444142421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8733.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 103444142421 its reverse (124241444301), we get a palindrome (227685586722).

The spelling of 103444142421 in words is "one hundred three billion, four hundred forty-four million, one hundred forty-two thousand, four hundred twenty-one".