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20311003101 = 324337278191
BaseRepresentation
bin10010111010101000…
…010100111111011101
31221102111201212022010
4102322220110333131
5313044104044401
613155235141433
71316216451324
oct227250247735
957374655263
1020311003101
118683039284
123b2a144879
131bb8c58a3c
14da97210bb
157dd1eeed6
hex4baa14fdd

20311003101 has 8 divisors (see below), whose sum is σ = 27082547584. Its totient is φ = 13540063680.

The previous prime is 20311003067. The next prime is 20311003127. The reversal of 20311003101 is 10130011302.

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

It is not a de Polignac number, because 20311003101 - 215 = 20310970333 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 (20311005101) 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, 66085 + ... + 212106.

It is an arithmetic number, because the mean of its divisors is an integer number (3385318448).

Almost surely, 220311003101 is an apocalyptic number.

It is an amenable number.

20311003101 is a deficient number, since it is larger than the sum of its proper divisors (6771544483).

20311003101 is a wasteful number, since it uses less digits than its factorization.

20311003101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302531.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 20311003101 its reverse (10130011302), we get a palindrome (30441014403).

The spelling of 20311003101 in words is "twenty billion, three hundred eleven million, three thousand, one hundred one".

Divisors: 1 3 24337 73011 278191 834573 6770334367 20311003101