103020512443 has 6 divisors (see below), whose sum is σ = 104491947212. Its totient is φ = 101569514340.

The previous prime is 103020512429. The next prime is 103020512471. The reversal of 103020512443 is 344215020301.

It is not a de Polignac number, because 103020512443 - 2²⁹ = 102483641531 is a prime.

It is a super-2 number, since 2×103020512443² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103020512743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10213221 + ... + 10223302.

Almost surely, 2^103020512443 is an apocalyptic number.

103020512443 is a deficient number, since it is larger than the sum of its proper divisors (1471434769).

103020512443 is an frugal number, since it uses more digits than its factorization.

103020512443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20436665 (or 20436594 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 103020512443 its reverse (344215020301), we get a palindrome (447235532744).

The spelling of 103020512443 in words is "one hundred three billion, twenty million, five hundred twelve thousand, four hundred forty-three".