103405215533 has 4 divisors (see below), whose sum is σ = 103946604288. Its totient is φ = 102863826780.

The previous prime is 103405215517. The next prime is 103405215547. The reversal of 103405215533 is 335512504301.

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.

It is a cyclic number.

It is not a de Polignac number, because 103405215533 - 2⁴ = 103405215517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 103405215533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103405215833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270694091 + ... + 270694472.

It is an arithmetic number, because the mean of its divisors is an integer number (25986651072).

Almost surely, 2^103405215533 is an apocalyptic number.

It is an amenable number.

103405215533 is a deficient number, since it is larger than the sum of its proper divisors (541388755).

103405215533 is an equidigital number, since it uses as much as digits as its factorization.

103405215533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541388754.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 103405215533 its reverse (335512504301), we get a palindrome (438917719834).

The spelling of 103405215533 in words is "one hundred three billion, four hundred five million, two hundred fifteen thousand, five hundred thirty-three".