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31023003123013 = 117831136013753
BaseRepresentation
bin1110000110111000110110…
…00101001011110101000101
311001211202210102112220112011
413003130123011023311011
513031240102244414023
6145551434302254221
76351223636432636
oct703343305136505
9131752712486464
1031023003123013
119980866549810
123590570b87371
1314405c231b585
1479374289588d
1538bea5c6a50d
hex1c371b14bd45

31023003123013 has 8 divisors (see below), whose sum is σ = 33843709238976. Its totient is φ = 28202369191200.

The previous prime is 31023003122989. The next prime is 31023003123019. The reversal of 31023003123013 is 31032130032013.

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 31023003123013 - 225 = 31022969568581 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 (31023003123019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17145456 + ... + 18868297.

It is an arithmetic number, because the mean of its divisors is an integer number (4230463654872).

Almost surely, 231023003123013 is an apocalyptic number.

It is an amenable number.

31023003123013 is a deficient number, since it is larger than the sum of its proper divisors (2820706115963).

31023003123013 is a wasteful number, since it uses less digits than its factorization.

31023003123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36092075.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31023003123013 its reverse (31032130032013), we get a palindrome (62055133155026).

The spelling of 31023003123013 in words is "thirty-one trillion, twenty-three billion, three million, one hundred twenty-three thousand, thirteen".

Divisors: 1 11 78311 861421 36013753 396151283 2820273011183 31023003123013