103000505421 has 32 divisors (see below), whose sum is σ = 151626608640. Its totient is φ = 61674177600.

The previous prime is 103000505401. The next prime is 103000505423. The reversal of 103000505421 is 124505000301.

It is a de Polignac number, because none of the positive numbers 2^k-103000505421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103000505423) 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, 1429815 + ... + 1500123.

It is an arithmetic number, because the mean of its divisors is an integer number (4738331520).

Almost surely, 2^103000505421 is an apocalyptic number.

103000505421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103000505421 is a deficient number, since it is larger than the sum of its proper divisors (48626103219).

103000505421 is a wasteful number, since it uses less digits than its factorization.

103000505421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70857.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 103000505421 its reverse (124505000301), we get a palindrome (227505505722).

The spelling of 103000505421 in words is "one hundred three billion, five hundred five thousand, four hundred twenty-one".