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31023210012103 = 817913967271571
BaseRepresentation
bin1110000110111001001110…
…11010011001110111000111
311001211210022211211222000001
413003130213122121313013
513031241013230341403
6145551511012502131
76351232031112061
oct703344732316707
9131753284758001
1031023210012103
119980962307631
12359060a31a947
13144062614845a
1479376214c731
1538beb8ed5c1d
hex1c3727699dc7

31023210012103 has 8 divisors (see below), whose sum is σ = 31029338753280. Its totient is φ = 31017081858360.

The previous prime is 31023210012097. The next prime is 31023210012163. The reversal of 31023210012103 is 30121001232013.

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 31023210012103 - 217 = 31023209881031 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 (31023210012163) 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, 114100308 + ... + 114371878.

It is an arithmetic number, because the mean of its divisors is an integer number (3878667344160).

Almost surely, 231023210012103 is an apocalyptic number.

31023210012103 is a deficient number, since it is larger than the sum of its proper divisors (6128741177).

31023210012103 is a wasteful number, since it uses less digits than its factorization.

31023210012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293717.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31023210012103 its reverse (30121001232013), we get a palindrome (61144211244116).

The spelling of 31023210012103 in words is "thirty-one trillion, twenty-three billion, two hundred ten million, twelve thousand, one hundred three".

Divisors: 1 8179 13967 271571 114236093 2221179209 3793032157 31023210012103