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3103203121231 is a prime number
BaseRepresentation
bin101101001010000101010…
…100011101100001001111
3101222122220120011000222111
4231022011110131201033
5401320324444334411
610333331500324451
7440125160212333
oct55120524354117
911878816130874
103103203121231
11a97074297204
12421508543727
13196827b31a45
14aa2a55157c3
1555ac4c96721
hex2d28551d84f

3103203121231 has 2 divisors, whose sum is σ = 3103203121232. Its totient is φ = 3103203121230.

The previous prime is 3103203121177. The next prime is 3103203121247. The reversal of 3103203121231 is 1321213023013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3103203121231 - 27 = 3103203121103 is a prime.

It is a super-3 number, since 3×31032031212313 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3103203121831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1551601560615 + 1551601560616.

It is an arithmetic number, because the mean of its divisors is an integer number (1551601560616).

Almost surely, 23103203121231 is an apocalyptic number.

3103203121231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3103203121231 is an equidigital number, since it uses as much as digits as its factorization.

3103203121231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3103203121231 its reverse (1321213023013), we get a palindrome (4424416144244).

The spelling of 3103203121231 in words is "three trillion, one hundred three billion, two hundred three million, one hundred twenty-one thousand, two hundred thirty-one".