103421634553 has 4 divisors (see below), whose sum is σ = 103423458640. Its totient is φ = 103419810468.

The previous prime is 103421634551. The next prime is 103421634557. The reversal of 103421634553 is 355436124301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355436124301 = 4703 ⋅75576467.

It is a cyclic number.

It is not a de Polignac number, because 103421634553 - 2¹ = 103421634551 is a prime.

It is a super-2 number, since 2×103421634553² (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 (103421634551) 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 3 ways as a sum of consecutive naturals, for example, 824175 + ... + 941332.

It is an arithmetic number, because the mean of its divisors is an integer number (25855864660).

Almost surely, 2^103421634553 is an apocalyptic number.

It is an amenable number.

103421634553 is a deficient number, since it is larger than the sum of its proper divisors (1824087).

103421634553 is an equidigital number, since it uses as much as digits as its factorization.

103421634553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824086.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 103421634553 its reverse (355436124301), we get a palindrome (458857758854).

The spelling of 103421634553 in words is "one hundred three billion, four hundred twenty-one million, six hundred thirty-four thousand, five hundred fifty-three".