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2131331002301 = 12566211696081
BaseRepresentation
bin11111000000111101001…
…110100010111110111101
321112202100010022000111102
4133000331032202332331
5234404431214033201
64311041524102445
7306661240414424
oct37007516427675
97482303260442
102131331002301
1175198a872716
122a5096534a25
13125ca310a117
147522aa2a2bb
153a692b0726b
hex1f03d3a2fbd

2131331002301 has 4 divisors (see below), whose sum is σ = 2131333955004. Its totient is φ = 2131328049600.

The previous prime is 2131331002253. The next prime is 2131331002319. The reversal of 2131331002301 is 1032001331312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1058244264100 + 1073086738201 = 1028710^2 + 1035899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2131331002301 is a prime.

It is a super-3 number, since 3×21313310023013 (a number of 38 digits) contains 333 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 (2131331002331) 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, 408581 + ... + 2104661.

It is an arithmetic number, because the mean of its divisors is an integer number (532833488751).

Almost surely, 22131331002301 is an apocalyptic number.

It is an amenable number.

2131331002301 is a deficient number, since it is larger than the sum of its proper divisors (2952703).

2131331002301 is a wasteful number, since it uses less digits than its factorization.

2131331002301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952702.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2131331002301 its reverse (1032001331312), we get a palindrome (3163332333613).

The spelling of 2131331002301 in words is "two trillion, one hundred thirty-one billion, three hundred thirty-one million, two thousand, three hundred one".

Divisors: 1 1256621 1696081 2131331002301