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20110031132401 = 719151203241597
BaseRepresentation
bin1001001001010001110110…
…10000110001011011110001
32122012111111122110011122201
410210220323100301123301
510113440320432214101
6110434230515103201
74143621214145230
oct444507320613361
978174448404581
1020110031132401
116453686341401
1223095608a1b01
13b2b4a2091182
144d748b626b17
1524d194a7ce01
hex124a3b4316f1

20110031132401 has 8 divisors (see below), whose sum is σ = 24192518655680. Its totient is φ = 16329950092368.

The previous prime is 20110031132393. The next prime is 20110031132407. The reversal of 20110031132401 is 10423113001102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20110031132401 - 23 = 20110031132393 is a prime.

It is a super-2 number, since 2×201100311324012 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110031132407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75601620666 + ... + 75601620931.

It is an arithmetic number, because the mean of its divisors is an integer number (3024064831960).

Almost surely, 220110031132401 is an apocalyptic number.

It is an amenable number.

20110031132401 is a deficient number, since it is larger than the sum of its proper divisors (4082487523279).

20110031132401 is a wasteful number, since it uses less digits than its factorization.

20110031132401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151203241623.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20110031132401 its reverse (10423113001102), we get a palindrome (30533144133503).

The spelling of 20110031132401 in words is "twenty trillion, one hundred ten billion, thirty-one million, one hundred thirty-two thousand, four hundred one".

Divisors: 1 7 19 133 151203241597 1058422691179 2872861590343 20110031132401