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102101201101001 = 179235696657987
BaseRepresentation
bin10111001101110001001001…
…110100101010000011001001
3111101111210001020212222022202
4113031301021310222003021
5101340311224440213001
61001052351054325545
730335365641621104
oct2715611164520311
9441453036788282
10102101201101001
112a594970281013
12b54ba917b98b5
1344c8142ca83ab
141b2da2005b73b
15bc0d4718d96b
hex5cdc49d2a0c9

102101201101001 has 4 divisors (see below), whose sum is σ = 102106897776912. Its totient is φ = 102095504425092.

The previous prime is 102101201100953. The next prime is 102101201101007. The reversal of 102101201101001 is 100101102101201.

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 a de Polignac number, because none of the positive numbers 2k-102101201101001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102101201101007) 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, 2848311071 + ... + 2848346916.

It is an arithmetic number, because the mean of its divisors is an integer number (25526724444228).

Almost surely, 2102101201101001 is an apocalyptic number.

It is an amenable number.

102101201101001 is a deficient number, since it is larger than the sum of its proper divisors (5696675911).

102101201101001 is an equidigital number, since it uses as much as digits as its factorization.

102101201101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696675910.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102101201101001 its reverse (100101102101201), we get a palindrome (202202303202202).

The spelling of 102101201101001 in words is "one hundred two trillion, one hundred one billion, two hundred one million, one hundred one thousand, one".

Divisors: 1 17923 5696657987 102101201101001