102101355161 has 4 divisors (see below), whose sum is σ = 109955305572. Its totient is φ = 94247404752.

The previous prime is 102101355133. The next prime is 102101355199. The reversal of 102101355161 is 161553101201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21706423561 + 80394931600 = 147331^2 + 283540^2 .

It is a cyclic number.

It is not a de Polignac number, because 102101355161 - 2¹⁰ = 102101354137 is a prime.

It is a super-2 number, since 2×102101355161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102101355161.

It is not an unprimeable number, because it can be changed into a prime (102101355101) 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, 3926975186 + ... + 3926975211.

It is an arithmetic number, because the mean of its divisors is an integer number (27488826393).

Almost surely, 2^102101355161 is an apocalyptic number.

It is an amenable number.

102101355161 is a deficient number, since it is larger than the sum of its proper divisors (7853950411).

102101355161 is an equidigital number, since it uses as much as digits as its factorization.

102101355161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7853950410.

The product of its (nonzero) digits is 900, while the sum is 26.

Adding to 102101355161 its reverse (161553101201), we get a palindrome (263654456362).

The spelling of 102101355161 in words is "one hundred two billion, one hundred one million, three hundred fifty-five thousand, one hundred sixty-one".