101837841085 has 4 divisors (see below), whose sum is σ = 122205409308. Its totient is φ = 81470272864.

The previous prime is 101837841073. The next prime is 101837841089. The reversal of 101837841085 is 580148738101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580148738101 = 881 ⋅658511621.

It can be written as a sum of positive squares in 2 ways, for example, as 27113244921 + 74724596164 = 164661^2 + 273358^2 .

It is a cyclic number.

It is not a de Polignac number, because 101837841085 - 2⁷ = 101837840957 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 (101837841089) 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, 10183784104 + ... + 10183784113.

It is an arithmetic number, because the mean of its divisors is an integer number (30551352327).

Almost surely, 2^101837841085 is an apocalyptic number.

It is an amenable number.

101837841085 is a deficient number, since it is larger than the sum of its proper divisors (20367568223).

101837841085 is an equidigital number, since it uses as much as digits as its factorization.

101837841085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20367568222.

The product of its (nonzero) digits is 215040, while the sum is 46.

The spelling of 101837841085 in words is "one hundred one billion, eight hundred thirty-seven million, eight hundred forty-one thousand, eighty-five".