103003421555 has 8 divisors (see below), whose sum is σ = 123619785552. Its totient is φ = 82392284128.

The previous prime is 103003421531. The next prime is 103003421561. The reversal of 103003421555 is 555124300301.

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 103003421555 - 2¹⁸ = 103003159411 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263152 + ... + 1342221.

It is an arithmetic number, because the mean of its divisors is an integer number (15452473194).

Almost surely, 2^103003421555 is an apocalyptic number.

103003421555 is a deficient number, since it is larger than the sum of its proper divisors (20616363997).

103003421555 is an equidigital number, since it uses as much as digits as its factorization.

103003421555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613285.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 103003421555 its reverse (555124300301), we get a palindrome (658127721856).

The spelling of 103003421555 in words is "one hundred three billion, three million, four hundred twenty-one thousand, five hundred fifty-five".