989000100102101 has 4 divisors (see below), whose sum is σ = 1041052736949600. Its totient is φ = 936947463254604.

The previous prime is 989000100102041. The next prime is 989000100102229. The reversal of 989000100102101 is 101201001000989.

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 989000100102101 - 2¹⁴ = 989000100085717 is a prime.

It is a super-2 number, since 2×989000100102101² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989000100132101) 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, 26026318423721 + ... + 26026318423758.

It is an arithmetic number, because the mean of its divisors is an integer number (260263184237400).

Almost surely, 2^{989000100102101} is an apocalyptic number.

It is an amenable number.

989000100102101 is a deficient number, since it is larger than the sum of its proper divisors (52052636847499).

989000100102101 is a wasteful number, since it uses less digits than its factorization.

989000100102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52052636847498.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 989000100102101 in words is "nine hundred eighty-nine trillion, one hundred million, one hundred two thousand, one hundred one".