103202403561 has 8 divisors (see below), whose sum is σ = 152892449760. Its totient is φ = 68801602356.

The previous prime is 103202403539. The next prime is 103202403611. The reversal of 103202403561 is 165304202301.

103202403561 is a `hidden beast` number, since 1 + 0 + 3 + 202 + 403 + 56 + 1 = 666.

It is not a de Polignac number, because 103202403561 - 2⁶ = 103202403497 is a prime.

It is a super-2 number, since 2×103202403561² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3822311243 = 103202403561 / (1 + 0 + 3 + 2 + 0 + 2 + 4 + 0 + 3 + 5 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (103202483561) 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 7 ways as a sum of consecutive naturals, for example, 1911155595 + ... + 1911155648.

It is an arithmetic number, because the mean of its divisors is an integer number (19111556220).

Almost surely, 2^103202403561 is an apocalyptic number.

It is an amenable number.

103202403561 is a deficient number, since it is larger than the sum of its proper divisors (49690046199).

103202403561 is an equidigital number, since it uses as much as digits as its factorization.

103202403561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822311252 (or 3822311246 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 103202403561 its reverse (165304202301), we get a palindrome (268506605862).

The spelling of 103202403561 in words is "one hundred three billion, two hundred two million, four hundred three thousand, five hundred sixty-one".