102200535541 has 4 divisors (see below), whose sum is σ = 110062115212. Its totient is φ = 94338955872.

The previous prime is 102200535517. The next prime is 102200535557. The reversal of 102200535541 is 145535002201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145535002201 = 1031 ⋅141159071.

It can be written as a sum of positive squares in 2 ways, for example, as 11849193316 + 90351342225 = 108854^2 + 300585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102200535541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102200505541) 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, 3930789816 + ... + 3930789841.

It is an arithmetic number, because the mean of its divisors is an integer number (27515528803).

Almost surely, 2^102200535541 is an apocalyptic number.

It is an amenable number.

102200535541 is a deficient number, since it is larger than the sum of its proper divisors (7861579671).

102200535541 is an equidigital number, since it uses as much as digits as its factorization.

102200535541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7861579670.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 102200535541 its reverse (145535002201), we get a palindrome (247735537742).

The spelling of 102200535541 in words is "one hundred two billion, two hundred million, five hundred thirty-five thousand, five hundred forty-one".